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Petroleum Development Oman L.L.C.

Engineering and Operations

Permit to Work System

User Note:

The requirements of this document are mandatory. Non-compliance shall only be authorised bythe Document Owner or his Delegate through STEP-OUT approval.

A controlled copy of the current version of this document is on PDO's EDMS. Before makingreference to this document, it is the user's responsibility to ensure that any hard copy, or electronic copy, is current. For assistance, contact the Document Custodian or the Document Controller .

Users are encouraged to participate in the ongoing improvement of this document by providingconstructive feedback .

Please familiarise yourself with theDocument Security Classification Definitions

They also apply to this Document!

This document is the property of Petroleum Development Oman, LLC. Neither the whole nor any part of this document may be disclosed to others or reproduced, stored in a retrieval system, or transmitted inany form by any means (electronic, mechanical, reprographic recording or otherwise) without prior writtenconsent of the owner.

UNRESTRICTED Document ID: PR-1172Nov-08 Filing Key: Business Control

mailto:[email protected]?subject=Ref:%20SP-1219,%20Well%20Engineering%20H2S%20Specification




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Petroleum Development Oman LLCRevision 6.0

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PR-1172 – Permit to Work System Printed 29/11/08

The controlled version of this CMF Document resides online in Livelink®. Printed copies are UNCONTROLLED.




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i Document Authorisation

Authorised For Issue – November 2008






Effective: Nov-08

ii Revision History

The following is a brief summary of the 5 most recent revisions to this document. Details of allrevisions prior to these are held on file by the issuing department.

RevisionNo. Date Author Scope / Remarks

6.0 Nov-08 Del Ellbec UOP/7 Incorporating changes from PTWannual review / audit, and user feedback Reformatted and Change of Ownership

5.0 Jul-05 Obaid.R.Al-Maani Incorporation of changes due to NOMand October 2004 Level 2 PTW Auditrecommendations, including therevision of the formation of Assessment team members in PTWlicensing panel across the company.

4.0 Jul-02 Hamed S. Al-KhalfeenRef. Ind: CSM/11

Incorporation of changes from Permitto Work Workshop conducted on 12Mar 2002.

3.0 Mar-99 Incorporation of changes from Yibalpilot operation

2.0 Nov-98 Re-write of Version 1 Manual, includingrevision of requirement for workneeding a Permit, and emphasis on therole of the Job HSE Plan. Incorporationof Addendum of system detailoperation and licensing requirements,together with other detail changes.

iii Related Business Processes

Code Business Process (EPBM 4.0)

EP 72 Maintain and Assure Facilit ies Integrity

iv Related Corporate Management Frame Work (CMF)Documents

The related CMF Documents can be retrieved from the CMF Business Control Portal .

CP-122 Health, Safety and Environment Management Manual

CP-114 Maintenance CoP

CP-118 Well Life Cycle Integrity

SP-1108(22) Electrical Safety Operating Procedures (ESOP-22 Live Line Working andLive Line Washing Practices

SP-1157 HSE Training

SP-1170 HSE Specification - Naturally Occurring Radioactive Materials (NORM)

PR-1001a Facility Change Proposal Procedure

PR-1001c Temporary Override of Safeguarding System Procedure



http://sww1.pdo.shell.om/dept_applications/Infrastucture/IMandT/TAXI/cmf/index.htm

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Effective: Nov-08

PR-1001e Operations Procedure Temporary Variance

PR-1076 Isolation of Process Equipment

PR-1078 Hydrogen Sulphide Management

PR-1148 Entry into a Confined Space

PR-1154 Gas Testing

PR-1242 Activities in the Vicinity of Overhead Power Lines

GU-501 Guidelines for Excavating and Working Around Live Pipelines






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TABLE OF CONTENTS

i Document Authorisation...........................................................................................................3

ii Revision History....................................................................................................................... 4

iii Related Business Processes...................................................................................................4

iv Related Corporate Management Frame Work (CMF) Documents.........................................4

1 PDO Permit to Work System................................................................................................11

1.1 Scope............................................................................................................................... 11

1.2 Objectives........................................................................................................................ 11

1.3 Changes to the Document............................................................................................... 12

1.4 Step-out Approval............................................................................................................ 12

2 Management of the Permit to Work System.........................................................................13

2.1 System Custodian and Focal Points................................................................................ 13

2.2 Responsibilities of the System Custodian, OXO/2 and Focal Points...............................133 Work That Needs a Permit to Work .....................................................................................15

3.1 What is a Permit to Work system?.................................................................................. 15

3.2 Types of Permit............................................................................................................... 16

3.3 Location of Work............................................................................................................. 17

3.4 Activities Requiring a Permit...........................................................................................18

3.5 Gas Test Frequency........................................................................................................ 19

3.6 Type of Permit Required ................................................................................................ 20

3.7 Work in Other Areas under the Control of PDO.............................................................. 23

3.8 Other Work...................................................................................................................... 24

3.9 Work in Areas Not Under the Control of PDO................................................................. 24

Figure 3.1 – No Permit Job..................................................................................................25

4 Worksite Examination and Restrictions on Permit Work......................................................26

4.1 Worksite Examination Requirements..............................................................................26

Table 4.1 – Work Examination Requirements......................................................................26

4.2 Restrictions on Hot Work in Hazardous Zones................................................................26

4.3 Limits on the Amount of Work under an Area Authority..................................................27

5 Responsibilities of Persons Signing Permits.........................................................................28

5.1 People who Sign the Permit Documents......................................................................... 28

Table 5.1: PTW System Roles.............................................................................................28

5.2 Permit Applicant..............................................................................................................28

5.3 Responsible Supervisor...................................................................................................29

5.4 Area Authority.................................................................................................................. 30

5.5 The Permit Holder........................................................................................................... 30

5.6 Other Affected Custodian................................................................................................ 31

5.7 Gas Tester....................................................................................................................... 31

5.8 PTW Multi-Roles (Licensed Personnel)...........................................................................33






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Table 5.2 - Roles that May be Carried out by Licensed Personnel.......................................33

Table 5.3 - Roles that can be Filled by Any One Person on a Single Permit.......................33

6 How the Permit to Work System Operates...........................................................................35

6.1 The Permit Forms............................................................................................................35

Figure 6.1 – Permit Life Cycle..............................................................................................37

6.2 Applying for a Permit - Boxes 1 to 5................................................................................37

6.3 Authorisation and Coordination....................................................................................... 41

6.4 Briefing of the Permit Holder........................................................................................... 43

6.5 Isolations..........................................................................................................................43

6.6 Vehicle Access - Box 8.................................................................................................... 43

6.7 Co-ordination and Validation at the Issue Point - Boxes 9 & 10a....................................44

6.8 Acceptance by the Permit Holder - Box 10b.................................................................... 45

6.9 Actions after Validation....................................................................................................46

6.10 Briefing the Work Party – the Toolbox Talk...................................................................47

6.11 Supervision of the Work................................................................................................47

6.12 Gas Test Record - Box 9............................................................................................... 48

6.13 Suspension of Work - Box 10c......................................................................................48

6.14 Changeover of Personnel..............................................................................................50

6.15 Permit Re-validation - Boxes 10a & 10b....................................................................... 50

6.16 Permit Cancellation - Boxes 11 a) and 11 b).................................................................51

6.17 Permit Archiving............................................................................................................52

6.18 Permit Processing Procedure........................................................................................ 52

6.19 Permit Validation Exceptions......................................................................................... 57

7 Control of Isolations............................................................................................................... 58

7.1 Isolation Requirements....................................................................................................58

7.2 Electrical Systems........................................................................................................... 58

7.3 Mechanical Systems........................................................................................................58

7.4 Approval for Isolation....................................................................................................... 58

7.5 Permits for Spading......................................................................................................... 59

7.6 Unrecorded Isolations...................................................................................................... 59

7.7 Isolation Process............................................................................................................. 59

7.8 More than One Permit in an Isolation Boundary..............................................................60

7.9 De-Isolation on Completion of Work................................................................................60

7.10 De-Isolation for Testing................................................................................................. 61

7.11 Transfer of Isolations between Permits.........................................................................61

7.12 Extended Period Isolations (EPIs)................................................................................. 61

8 Permit Issue Points............................................................................................................... 63

8.1 Location and Use of Permit Issue Points......................................................................... 63

8.2 Purpose of Permit Issue Point Displays........................................................................... 638.3 Permit and Isolation Display............................................................................................ 63






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9 Use of the Work Tracking System.........................................................................................65

9.1 Objectives of the Work Tracking System........................................................................65

9.2 Operation of the Work Tracking System......................................................................... 65

10 Permit to Work System Certificates....................................................................................66

10.1 Certificates Provided.....................................................................................................66

10.2 Use of Certificates.........................................................................................................66

11 Hazard Management...........................................................................................................69

11.1 Objectives......................................................................................................................69

11.2 Job HSE Plan................................................................................................................ 69

Figure 11.1 – Job HSE Plan Process...................................................................................70

Figure 11.2 – Job HSE Plan (Example)...............................................................................71

12 Training and Licensing Of Permit to Work Signatories.......................................................72

12.1 Training and Licensing of Personnel with PTW Roles...................................................72

Table 12.1: PTW Training and Licensing Requirements......................................................72

12.2 Gas Testers................................................................................................................... 72

12.3 Training Course Assessment Tests...............................................................................72

12.4 Training Records........................................................................................................... 72

12.5 Licensing Policy............................................................................................................. 72

Figure 12.1 - Knowledge and Competence for Permit Activities..........................................73

12.6 Licensing of Permit to Work Signatories.......................................................................73

Table 12.2 - Licensing Assessment Teams..........................................................................75

12.7 Persons Assessed under an Approved Competence Scheme......................................76

12.8 License Cards................................................................................................................ 77

12.9 Re-Licensing..................................................................................................................77

12.10 Refresher Training....................................................................................................... 77

Figure 12.2 - Licence Application / Notification....................................................................78

13 Permit To Work Monitoring, Auditing And System Review.................................................79

13.1 Definitions......................................................................................................................79

13.2 Objectives......................................................................................................................79

13.3 Monitoring of the Permit to Work System...................................................................... 79

13.4 Auditing of the Permit to Work System.........................................................................80

Table 13.1: Audit Structure...................................................................................................81

13.5 Review of the Permit to Work System.......................................................................... 84

13.6 Permit to Work System Audit Forms............................................................................. 85

14 Change Management.......................................................................................................... 93

14.1 Proposals for Change to the Permit to Work System....................................................93

Table 14.1 Proposals for Change to the Permit to Work System.........................................93

15 Details of PTW System Operation......................................................................................94

15.1 Fault Finding.................................................................................................................. 9415.2 Construction Work......................................................................................................... 94






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15.3 Seismic Work................................................................................................................ 95

15.4 Geomatics Survey Work............................................................................................... 96

15.5 Pipeline Work................................................................................................................ 97

15.6 Work In Operational Areas............................................................................................ 97

15.7 Terminal Operations.................................................................................................... 103

15.8 Government Gas Operations.......................................................................................104

15.9 Electrical Safety Rules and PTW Interfaces................................................................105

15.10 Permits to Work for ESP Activities........................................................................... 106

15.11 Permits To Work On Drilling Rigs..............................................................................107

Appendix 1 – Class A Permit to Work...................................................................................111

Appendix 2 – Class B Permit to Work...................................................................................113

Appendix 3 - Mechanical Isolation Certificate & De-Isolation for Test Record Sheet...........115

Appendix 4 – Confined Space Entry, Additional Gas Test Record, Record of Personnel Entryand Exit.................................................................................................................................... 117

Appendix 5 – Access Authorisation Form.............................................................................119

Appendix 6 - Excavation Certificate......................................................................................120

Appendix 7 – Radiography Certificate...................................................................................121

Appendix 8 – Clearance Certificate for Work in the Vicinity or Passage Under O/H Lines...122

Appendix 9 - Definitions and Abbreviations..........................................................................123

TABLES AND FIGURES

Figure 3.1 – No Permit Job......................................................Error: Reference source not found

Table 4.1 – Work Examination Requirements.........................Error: Reference source not foundTable 5.1: PTW System Roles.................................................Error: Reference source not found

Table 5.2 - Roles that May be Carried out by Licensed Personnel.. ..Error: Reference source notfound

Table 5.3 - Roles that can be Filled by Any One Person on a Single Permit.. ... .Error: Referencesource not found

Figure 6.1 – Permit Life Cycle.................................................Error: Reference source not found

Figure 11.1 – Job HSE Plan Process.......................................Error: Reference source not found

Figure 11.2 – Job HSE Plan (Example)...................................Error: Reference source not found

Table 12.1: PTW Training and Licensing Requirements.........Error: Reference source not found

Figure 12.1 - Knowledge and Competence for Permit Activities.......Error: Reference source notfound

Table 12.2 - Licensing Assessment Teams.............................Error: Reference source not found

Figure 12.2 - Licence Application / Notification.......................Error: Reference source not found

Table 13.1: Audit Structure......................................................Error: Reference source not found

Table 14.1 Proposals for Change to the Permit to Work System......Error: Reference source notfound






Effective: Nov-08

Executive Summary

The petroleum industry handles large quantities of flammable and toxic materials, so thepotential for serious accidents is clear. To prevent these accidents, it is vital that there are safesystems of work operating.

When incidents do occur, human factors, such as failure to implement procedures properly, areoften a root cause. These failures may, in turn, be attributable to a lack of training, instructionor understanding of either the purpose or practical application of the Permit to Work (PTW)system.

A Permit to Work (PTW) system does not exists simply to provide permission to carry out ahazardous job. It is an essential part of a system, which determines how that job can be carriedout safely. The Permit is regarded as a statement that all hazards and risks have beeneliminated from or controlled in the work area. The issue of a Permit does not, by itself, make a job safe. That can only be achieved by those preparing for the work and those carrying it out.

The PTW system ensures that authorised and properly trained people have thought aboutforeseeable risks and that these are avoided by using suitable precautions. Those carrying outthe job think about and understand what they are doing and how their work may interface withthat of others. They must also take the necessary precautions which they have been trained totake and for which they have been made responsible.

The PDO PTW System exists to protect people, assets and the environment from damage.The PDO PTW Manual describes the PTW system (how Permit work is identified, approvedand controlled) and outlines the details necessary for all personnel involved in the PTW systemto carry out their work safely and with proper regard for the environment. More specifically,parts of the Manual address the following:

Section 1 Outlines the scope and objectives of the PTW system

Section 2 Outlines responsibilities of the PTW Custodians, Focal Points and others

Section 3 Defines types of Permits available & activities for which a Permit is required

Section 4 Outlines worksite examination requirements, restrictions on Permit work

Section 5 Outlines responsibilities of persons involved in operating the PTW Systemsuch as the Permit Applicant, Responsible Supervisor, Area Authority, PermitHolder and Authorised Gas Tester

Section 6 Describes the operation of the PTW system

Section 7 Outlines the requirements for the control of isolations

Section 8 Describes requirements for Permit issue points

Section 9 Outlines the use of the work tracking system

Section 10 Describes the Permit to Work certificates required and how these are to beused

Section 11 Describes the hazard management process (primarily Job HSE Plans)Section 12 Outlines the training and licensing requirements of the PTW system

Section 13 Outlines the PTW system monitoring, auditing and system review

Section 14 Describes how to forward suggestions for improving the PTW system

Section 15 Further details of the PTW system operation






Effective: Nov-08

1 PDO Permit to Work System

1.1 Scope

This Permit to Work (PTW) System Manual shall be used in all areas under the controlof PDO.

The Manual explains the “Principles of Permitry” and defines activities for which aPermit to Work is required. It also states how Permits are approved and controlled.Section 15 of the Manual gives detail guidance on how the PTW System shall be usedin specific work situations.

Permits are issued by PDO for work in areas where there may be a hydrocarbonhazard. Safety requirements for work in non-hydrocarbon areas are described in other relevant HSE procedures within PDO.

1.2 Objectives

The PDO Health, Safety and Environmental Management System Manual states thatthe Company will endeavour to protect the health and safety of personnel protect theenvironment and provide a safe and healthy workplace. The PTW System is animportant part of the way that PDO meets the requirements of this Policy.

The Objective of the PTW system is “To provide a system to ensure that non-routine,hazardous activities can be worked on in a safe manner”.

To achieve safety at the workplace, the PTW system must ensure that everyone isaware of the hazards involved in their work, and of the precautions they must take towork safely.

To help ensure this, the Permit to Work System requires:

Training: To ensure everyone understands the PTW System and how

to use it.Licensing: People signing Permits must be tested to ensure they

understand the System and have sufficient knowledge of hazards and controls to manage safe working.

Planning: To ensure that work is well planned, with the workforce andequipment prepared for the job.

Work Definition: To ensure that everyone understands the work content, andhow and where it shall be done.

Hazard Management: To ensure that the hazards involved in the work are identified,and the precautions and personal protection required for atask are correctly defined.

Co-ordination: To prevent conflicting activities from being authorised.

Communication: To ensure that all personnel understand the work content andthe Job HSE Plan.

Authorisation: Formal approval to do the work.

Supervision: Providing a person in charge of each work site, who isresponsible for ensuring that work party complies with therequirements of the Permit to Work.

Briefing: Toolbox Talks at the worksite to discuss the job, how it will bedone, and the precautions required.

Discipline: To ensure that everyone knows that they must comply with

Permit requirements.






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Housekeeping: To ensure that the work site is kept clean and safe at alltimes.

Verification: An audit programme to help ensure that the requirements of the Permit to Work System are being met in all areas of PDO.

Improvement: A Proposal for Change programme, together with audits, toensure that the system is improved whenever necessary.

For all work covered by a Permit, it is important that everyoneassociated with the job:

Understands: The work content and how it will be done.

The hazards involved, and precautions that are required.

The work area, hazards that may be present there and theprecautions required.

Any emergency actions that may be necessary.

Their own responsibilities, and

Complies: With all the requirements of the Permit to ensure thecontinued safety of personnel, plant and equipment.

REMEMBER, JUST HAVING A PERMIT IS NOT ENOUGH TO MAKE A JOB

SAFE - YOU MUST COMPLY WITH THE REQUIREMENTS OF THE PERMIT

AND ITS ASSOCIATED JOB SAFETY PLAN.

1.3 Changes to the Document

Responsibility for the upkeep of the Document shall be with the Functional ProductionTeam Leader UOP, the Owner. Changes to this document shall only be authorised andapproved by the Owner.

Users of the Document who identify inaccuracy or ambiguity can notify the Custodianor his/her delegate and request changes be initiated. The Requests shall be forwardedto the Custodian.

The Document Owner and the Document Custodian should ensure review and re-verification of this procedure every 1 year.

1.4 Step-out Approval

This procedure is mandatory and shall be complied with at all times. Shouldcompliance with this procedure be considered inappropriate or the intended activitycannot be effectively completed or safely performed, then step out authorisation andapproval must be obtained in accordance with PR-1001e – Operations TemporaryVariance, prior to any changes or activities associated with the procedure being carriedout. Additionally in the case of Permit to Work the request shall be formally agreed andendorsed by the PTW Manager (UOP7)






Effective: Nov-08

2 Management of the Permit to Work System

2.1 System Custodian and Focal Points

The PTW System Corporate Custodian is the Production Function Permit to WorkManager (UOP/7). UOP/7 is responsible for providing steering/direction to ensure thatthe PTW System meets the needs of PDO. This role is also responsible for implementation support and coordinating system maintenance

The PTW Training Custodian is UOP/7 who is responsible for the content andsuitability of PTW training.

Asset Directors are responsible for the implementation of the PTW System, and for appointing Focal Points for the PTW System in each Area.

2.2 Responsibilities of the System Custodian, OXO/2 and Focal Points

2.2.1 PTW System CustodianThe Responsibilities of the PTW System Custodian are:

• To be the Corporate focus within PDO for the content of the PTW System.

• To maintain a high standard of quality and content for all PTW System

documentation.

• To ensure that the system in place delivers the necessary documentation to

users.

• To define the requirements for PTW System Hardware, including Permit Racks,

Location Boards, Isolation Hardware, etc.

• To be the corporate focus for Area Focal Points to submit proposals for change

to the System, reviewing and incorporating these annually.

• To control revisions to the PTW System, consulting with user Departments

about any changes that will be made.

• To ensure that briefings are delivered on any changes to the System.

• To ensure that auditing is being done in accordance with the defined audit

scheme.

• To approve functional specs for computer systems used as part of the PTW

System.

• To provide training to PTW Focal Points.

• “Helpdesk” support.

• Implementation support and system maintenance.

2.2.2 OXO/2

The responsibility of the OXO/2 position is:

• Provide Audit support






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2.2.2 OXO1X

The responsibility of the Delivery Team Leader (DTL) position is:

• To initiate Area Audit programs

• Provide Implementation support

• Ensure compliance with the PTW system in their area of operation

2.2.3 HSE Mandated Training Focal Point

The responsibilities of the HSE Training Focal Point are:

• To manage QA/QC for PTW training.

• To manage the Contractual issues around PTW Training

2.2.4 PTW Training Custodian

The responsibilities of the PTW Training Custodian are:

• To define the requirements for PTW Training Courses and their content.

• To maintain the required standard of course delivery.

2.2.5 Focal Points

The responsibilities of the PTW Focal Points within each area are:

• To provide local implementation support.

• To ensure PTW Audits are being done in an effective manner.

•

To be the local focal point for proposals for change to the system.






Effective: Nov-08

3 Work That Needs a Permit to Work

3.1 What is a Permit to Work system?

A Permit to Work system is a formal documented system used to control work whichhas been identified as potentially dangerous. It is also a means of communicationbetween site management, supervisors, operators and those who carry out the work.

A PTW system aims to ensure that proper planning and precautions are taken withhazards to control the risk of a particular job. The permit is a written document whichauthorises certain people to carry out specific work at a certain time and place. Thepermit sets out the precautions needed complete the work safely.

There are two types of Permits. These are described in Section 3.2 of this document.

3.1.1 Principle of Permitry

The "Principle of Permitry" is the process used to determine whether a job needs a

Permit to Work or not.Prior to any work commencing, the Responsible Supervisor and the Permit Applicantare to discuss the job/s to be executed and, using the process flowchart below,determine whether a PTW is required or not. Their determination shall be verified bythe Permit Signatories.

This is a MANDATORY requirement to determine "WHEN A PERMIT ISREQUIRED":

NOTES:






Effective: Nov-08

1. Work without a permit shall not start without the following:-

a. A Job HSE Plan for the work

b. Diligent supervision on site

c. A completed “No Permit Job” form signed by the work site Supervisor and

authorised by the relevant responsible supervisor 2. Written procedures can vary in length, but need to be specific for the job, cover

the hazards identified and the control measures required. These need to beendorsed and approved by the Team Leader or Manager.

3. If the job is able to be completed without a Permit, the Work Site Supervisor must submit a signed “No Permit Job” form to the Responsible Supervisor.The Responsible Supervisor shall authorise the form before any work canbegin. Please refer to Figure 3.1 at the end of this Section for a copy of the“No Permit Job” form.

3.1.2 Hazard and Risk Assessment

A critical element of the Principle of Permitry and PTW preparation stage is anassessment of the hazards, threats and risk which are associated with the work to beundertaken. The techniques of the Hazard and Effect Management Process (HEMP)shall be applied which helps the assessor to:

IDENTIFY

Understand the hazards and threats associated with the work (What are the impacts topeople, environment or assets? Obtain precise details of the work to be undertaken. Are there 'process' hazards or hazards associated with the material being handledinvolved in the work?)

ASSESS

Recognise the risks (What are the likelihood to cause harm? Is the risk involved as low

as reasonably practicable -ALARP? Consider the practical difficulties of carrying outthe work, if necessary consulting the discipline specialists undertaking the work)

CONTROL

Decide upon the barriers and control necessary to manage the risk thus providing asafe working environment (What is required to prevent the likelihood of causing harmfrom carrying out the work being realised? Are there any safer alternatives either interms of timing, or the intended method of performance of the work) and

RECOVER

Agree on the recovery measures in the event that controls break down. The Permit Applicant should carry out such assessment in conjunction with his workforce and anyother persons whose specialist knowledge may be needed. Where available the Permit

Applicant will take advantage of all hazard information in Part 5 of the Safety Case.This will assist him in recognising hazards, threats, risks, barriers and precautionsneeded and response mechanism should controls breakdown. Likewise theResponsible supervisor and the Area Authority should also undertake such assessmentwhen the permit is presented to further enhance safety control, if needed.

NOTE: Section 11 of this procedure explains in details how to prepare Job HSE planbased on Risk assessment.

3.2 Types of Permit

3.2.1 Class A - Red Edged Permits

Class A Permits (refer to Appendix A) are required for high risk work. This is work thatcould lead to major consequences such as fire, explosion, or loss of life.






Effective: Nov-08

Class A Permits requires:

• 72 hours notice, except for essential unplanned work.

• A Job HSE Plan to be completed, and attached to the Permit, and prominently

displayed at the worksite. A copy should be placed with the permit in the permit

rack.• Worksite examination by the Responsible Supervisor and Permit Applicant

before the Responsible Supervisor Authorises the Permit. (see 4.1)

Some areas have more than one person licensed as a Responsible Supervisor.It is quite acceptable for the duty Responsible Supervisor to delegate site visitsto another person who holds a Responsible Supervisor licence.

• Daily Validation of the Permit by the Area Authority. The Area Authority must

examine the worksite each day before Validating a Permit for work inside aProcess Facility. The Area Authority must examine the worksite on the first dayfor work in Hydrocarbon Areas; however, this may be delegated to an Authorised Gas Tester (AGT) at the discretion of the Responsible Supervisor.(see 5.7)

• Tracking in the Work Tracking System.

3.2.2 Class B - Blue Edged Permits

Class B Permits (refer to Appendix B) are required for medium risk work.

Class B Permits require:

• 24 hours notice, except for essential unplanned work.

• A Job HSE Plan to be completed. Copies of the Job HSE Plan shall be attached

to the Permit taken to site and also to the Permit placed in the permit rack.

•

Authorisation by the Responsible Supervisor.• For work inside a Process Facility, a worksite examination by the Area Authority

before Validation on the first day (see 4.1)

• Daily Validation of the Permit by the Area Authority.

• Tracking in the Work Tracking System.

3.3 Location of Work

The type of Permit required for a job depends on the hazards resulting from:

• The type of work that shall be done.

•The area in which the work will be done.

Within PDO’s operations, three types of area have been defined in order to allow PTWcontrols to be appropriate for the level of risk.






Effective: Nov-08

3.3.1 Process Facilities

The area within the boundary fence of any hydrocarbon processing facility, including:

• Gathering and Pumping stations.

• Terminals.

• Other fenced hydrocarbon storage or processing areas.

In addition the level area around a wellhead is classed as a Process area for permitclassification purposes.

3.3.2 Hydrocarbon Areas

Areas outside the boundaries of Process Facilities where hydrocarbons are, or havebeen present. These include:

• Areas outside Process Facilities, but within 50m of the boundary fence.

• Areas within 50m of a well site or exposed section of flowline/pipeline which hasflanged joints.

• Areas within 100m of a drilling rig for work by non drilling personnel.

3.3.3 Non Hydrocarbon Areas

These are areas where hydrocarbons never have been present. They include:

• Areas of land outside Process Facilities and Hydrocarbon Areas, including

construction sites for new facilities until hydrocarbons are first introduced andthe areas surrounding fully welded pipelines and flowlines.

• Work by electrical personnel in electrical switching stations and on power

distribution systems, done in accordance with ESRs.

• Administration, recreation or accommodation buildings, including work on

domestic gas and electric systems.

• Work in laboratories and medical facilities.

NOTE: It is important to understand the differences between the areas mentioned above, Hazardous Areas and Restricted Areas, all of which are mentioned in the PTW Manual.

The Hazardous Areas (Zones 0, 1 and 2), defined in Hazardous Area drawings, relateto the likelihood of presence of hydrocarbons. Hazardous Areas will lie within either aProcess Facility or a Hydrocarbon Area. However, not all parts of a Process Facility or Hydrocarbon Area will be a Hazardous Area (e.g. control rooms are sited in non-hazardous areas).

Process Facilities will all be Restricted Areas. However, some Restricted Areas are notProcess Facilities (e.g. Telecom facilities).

3.4 Activities Requiring a Permit

The Table in 3.6.1 shows the Activities that require Class A and Class B Permits inProcess Facilities and Hydrocarbon Areas.

For Example:

Grinding in a Process Facility Class A Permit

Grinding in a Hydrocarbon Area Class B Permit






Effective: Nov-08

The Table in 3.6.2 shows the Activities that require Class A and Class B Permits for work in areas controlled by Electrical Departments.

Work in other areas may require a Permit. See 3.7 for more details of how work inthese areas is controlled.

When the work on a Permit involves two or more different Activities:

• If any Activity requires a Class A Permit, a Class A Permit is required for the

overall job.

• All Activi ties are to be listed on the Permit.

• The Job HSE Plan must show the controls required for all the Activities.

• A Permit should not include so many Activities that it is difficult to understand

the controls needed for each stage of the work. If the work is complex, it maybe better to use separate Permits for each part of the job.

Where personnel not on the normal access list require entry to a Process Facility for avisual inspection only, an Access Authorisation Form (refer to Appendix 4) may beused. Guidance on how to use this form can be found in the Access Control Procedure,

SRD/P/08.

A Responsible Supervisor may sometimes require a Permit to Work for activities thatwould not normally require it, in order to ensure safe working.

3.5 Gas Test Frequency

3.5.1 Confined Spaces

For entry to confined spaces, gas testing is required before entry and at the start of each shift; reference should be made to PR-1148 – Entry in to a Confined Space for more details.

3.5.2 H2S Areas

In H2S Areas testing and monitoring for H2S is required in accordance with PR-1078 –Hydrogen Sulphide Management and PR-1154 Gas Testing Procedure.

3.5.3 Testing for Hot Work

The Table in 3.6 shows the recommended frequency for Gas Testing for Hot Work.Responsible Supervisors and Area Authorities may wish to test at intervals differingfrom the guidance, where conditions require this. In addition there are some categoriesof work which require continuous gas monitoring for the duration of the job.

The basic principle of the guidance is that a gas test should be done before startingwork each day, and after each period away from the worksite of more than 1 hour (e.g.lunch.) In addition, a test should be done every 2 hours for work that may causeflames or sparks done in Process Facilities where significant quantities of gas arepresent.

















Effective: Nov-08

3.6 Type of Permit Required

Class A Permit Required

Class B Permit Required

HSE Plan Required (No Permit Documentation)

Gas Test to be done before starting work each day, and after each period away from theworksite of more than 1 hour

Gas Test every two hours in areas where significant quantities of gas may be present

3.6.1 Work in Areas where Hydrocarbons may be Present.

Activity. Location of Work

Process Facility Hydrocarbon Area

1. Burning, Welding and Grinding

1.1 Welding (Gas) / Oxy-Acetylene cutting (HotWork)

+

Continuousmonitoring

1.2 Welding (Arc) (Hot Work) (See 15.5.1) +

Continuous

monitoring

1.3 Grinding (Hot Work) +


2. Confined Space Work

2.1 Confined Space Entry, except for Well Cellarsand Casasco pits. Note-Gas testing inaccordance with PDO policy is required. (See3.5.1)

+ Continuousmonitoring


2.2 Entry into Well Cellars (See 15.5.3) andCasasco Pits (See 15.4.2)

3. Electrical Work and Work in Electrical Areas

(See Section 15.8)

3.1 Work requiring an electrical safety document as

specified in Electrical Safety Rules (ESRs)3.2 The opening of live electrical junction boxes by

Electrical Authorised Persons (Hot Work)

4. Handling Hazardous Substances

4.1 Handling substances hazardous to health, e.g.toxic chemicals or asbestos

4.2 Use of Radioactive sources (See 15.5.8)

4.3 Contamination with Naturally OccurringRadiation Material (NORM)

4.4 Working with Pyrophoric Scale (except for scaleencountered during pigging operations)

5. Work on Safety Systems (See 15.5.1)

5.1 Work that affects the availability of ESD & F&GSystems

5.2 Work that affects the availability of Process andMachinery control systems

6. Mechanical Maintenance Activities (See Section15.5)

6.1 Work that involves cutting pipe on systemscontaining hydrocarbons or hazardous fluids


6.2 Work that involves unbolting flanges onsystems containing hydrocarbons or hazardousfluids

6.3 Grit Blasting (Hot Work)

6.4 Power/hand tools (except grinders) that maycreate a spark between surface and tool (Hot PR-1172 – Permit to Work System Printed 29/11/08





Effective: Nov-08


Work)

6.5 High Pressure (HP) water jetting

6.6 Painting (hand and spray) (See 15.5.17)

6.7 Engineering and routine/corrective maintenance

work which does not involve unbolting flangesor cutting into systems which have containedhydrocarbons or hazardous fluids.

6.8 Work in authorised workshops located in non-hazardous areas.

6.9 Leak clamping of oil/gas flowlines

6.10 Beam pump/PCP maintenance activities (See15.5.2)

6.11 Polyethylene lining of pipelines and flowlines 6.12 Vacuum tanker discharge inside a process area.

(See 15.6.6)+


6.13 Suction tanker operations inside a process area.(See 15.6.6

N/A

6.14 Engineering and routine/correctivemaintenance work which involves the use of lifting equipment

7. Work at Height

7.1 Working where a person may fall more than 2metres, except on approved walkways andscaffolds

8. Scaffolding Activities

8.1 Erection or dismantling of scaffolding

9. Operations using Cranes and other HeavyMachinery

9.1 Operations where heavy machinery e.g.cranes/crane loads, mechanical excavators,

trucks etc. could pass over, or come intocontact with, live hydrocarbon systems or overhead power lines. (See 15.4.1 for workclose to pipelines)

10. Systems and Equipment Testing andCommissioning / Decommissioning

10.1 Pressure testing of plant and equipment

10.2 Commissioning Systems and Equipment

10.3 Decommissioning

11. Use of non-certified equipment in Hazardous Areas

11.1 Use of Temporary Diesel Engines in hazardousareas (excluding vehicle access, but includinguse of a mobile crane) (Including refueloperations)

+

Continuous

monitoring

11.2 Use of non-Intrinsically Safe equipment (HotWork)

11.3 Use of Intrinsically Safe test / portable

equipment

11.4 Use of cameras (Hot Work). Providing a gasdetector is carried by an AGT, and flashrequirements included on the access permit

+


12. Civil Works

12.1 Excavation. (Hand excavation to 300 mm depthis required in areas where pipes or cables maybe present) (See 15.5.7)

12.2 Rebar cutting, bending and shuttering (formwork) and concrete pouring






Effective: Nov-08


12.3 Engineering construction activities, not involvingwelding, burning or grinding (See Section15.2.)

13. Operational Activities

13.1 Production operations including routine checksand visual inspections by the Area Authoritywhich require blowing down or sampling of hydrocarbons (providing an approved OperatingProcedure is being followed)

13.2 Routine, documented drilling activities. (SeeSection15.9)

13.3 Well Services operations at locations whereother groups are also working, or where well sitecustodianship has not been transferred to theWell Services department. (See 15.5.16)

13.4 Drilling Water Services activities listed inProcedure DWSOP No P033

13.5 Pipeline pigging operations covered byauthorised procedures & listed in approvedprogramme, including vehicle access to pig traparea.

Use Pigging Authorisation Form

Use Pigging Authorisation Form

13.6 Operation of permanently installed approvedequipment which produced an ignition source or open flame when it operates.

13.7 Seismic exploration activities. (See Section15.3)

13.8 Terminal Operations. See Section 15.6

13.9 Government Gas Operations. See Section 15.7

13.10 Geomatic Survey (See Section 15.4) 14. Inspection Work

14.1 Entry to Restricted Areas, for viewing purposesonly, by personnel not on the access list for that Area.

No Permit Required.

Use Access ControlForm

15. Roadway Work

15.1 Levelling and grading using machinery

16. Faultfinding

16.1 Minor Fault finding work. This may include thecontrolled isolation and de-isolation of valves,the removal of instruments for calibration,blowing through of pneumatic relays or other routine minor activities. (See 15.1)

17 ESP Activities

Hazardous Area

(Zon2 1 or 2)

Non Hazardous Area

17.1 Meggar Testing HV – See E1.1 Controlled by ESRs

17.2 Replacing Pig Tail at Wellhead (Isolated) N/A17.3 Fluid Shot N/A

17.4 Electrical Isolation - HV Activity Controlled by ESRs

17.5 Commissioning ESP, ESPCP & PCP (Willrequire gas test if breaking hydrocarbonenvelope)

17.6 Trouble shooting ESP, ESPCP, & PCP(Controlled under ESRs. See E1.1 No PermitJob to be signed by Electrical Supervisor)

17.7 ESP Powered by Generator (Controlled by ESRsSee E1.1)






Effective: Nov-08

3.6.2 Type of Permit Required in Electrical Installations owned by Power Systems

Operations

The type of Permit required depends on whether the work is in a Zone 1 or 2 of aHazardous Area, e.g. near fuel gas systems or in a non-hazardous area.


Hazardous Area

(Zone 1 or 2)

Non Hazardous Area

E1. Work in Electrical Installations (SeeSection15.8)

E1.1 Work requiring an electrical safety document asspecified in Electrical Safety Rules (ESRs)(Activity 3.1)

E1.2. Periodic Electrical lnspections at unmannedsubstations and power stations as per ESRsand Electrical Safety Operating Procedures(ESOPs), carried out by Power SystemsOperations own contractor staff.

E1.3. All construction activity such as excavationwork, civil and electrical work, lifting operationsusing crane, shot blasting and painting etc. bythird party or PDO supervision. (Use equivalent Activities from 3.6.1)

E1.4. Third party periodic visits to electricalsubstations and power stations e.g.Telecoms/SCADA, Area Services for routineelectrical work.

No Permit Required.

Use Access Control Form

E1.5. Live Line Washing on overhead lines to processfield facilities with or without auto-reclosers. No Permit Required.

Use Limitation of Access(LOA)

E1.6 The Opening of Live Electrical Junction Boxesby Electrical Authorised Persons (Hot Work)

(Activity 3.2)

E1.7. Low Voltage (LV) work requiring an electricalsafety document as specified in ESRs

E1.8 Non electrical work in electrical switchrooms,

power stations or near overhead lines No Permit Required.

Use Limitation of Access(LOA)

E1.9 Electrical Switching controlled by ESOPs andESRs.

E1.10 Electrical Maintenance Activities at unmannedsubstations and power stations as per ESRsand ESOPs, carried out by Power SystemsOperations own contractor staff.

E1.11 Non-routine electrical work in power stationsand substations, carried out by Power Systems

Operations own contractor staff.

E1.12 Non electrical work in power stations andsubstations, carried out by Power SystemsOperations own contractor staff.

3.7 Work in Other Areas under the Control of PDO

Work in areas under the control of PDO other than Process Facilities, Hydrocarbon Areas and Electrical Installations may not require a Permit to Work. For a Permit notto be required, certain additional job criteria also need to be met (e.g., familiar work,written procedure available, competent staff, etc). In addition, certain job requirementsmust be complied with before the work can start without a PTW (e.g., Job HSE Plan inplace, TRIC card completed, diligent supervision, etc). Refer to 3.1.1 “Principle of

Permitry” for further details.






Effective: Nov-08

It is worth emphasising, that within PDO operating areas, Job Hazard Analysis shall beapplied and Job HSE Plans put in place for any task which could adversely affect thehealth and safety of personnel, environment or plant and where the hazards andcontrol measures need to be assessed.

Contract Holders should ensure that Contractors HSE management measures include

suitable safe systems of work, which may include the operation of their own Permit toWork Systems.

3.8 Other Work

For any work not shown in the tables above, the hazards involved in the work are to beassessed by the Permit Applicant and Responsible Supervisor, and a Permit of themost appropriate Class shall be raised. The PTW System Custodian shall be advised if there is a need to include an additional Activity into the PTW system.

Contract Holders should ensure that Contractors HSE management measures includesuitable safe systems of work, which may include the operation of their own Permit toWork Systems.

3.9 Work in Areas Not Under the Control of PDO

On occasions where PDO personnel (or contractors to PDO) are to perform work inareas not under the control of PDO, the following guidelines will apply:-

• The Permit to Work system of the asset owner shall be complied with.

• PDO’s Responsible Supervisor or Area Authority shall countersign the Permit to

Work issued and include additional conditions (if required).

If the Permit to Work issued by the asset owner is considered to be inadequate and isnot able to be modified to the satisfaction of PDO personnel, then work is not to beallowed to commence.






Effective: Nov-08

Figure 3.1 – No Permit Job






Effective: Nov-08

4 Worksite Examination and Restrictions on Permit Work

4.1 Worksite Examination Requirements

The requirements for inspecting worksites before work starts are as set out in Table 4.1below.

Table 4.1 – Work Examination Requirements

Permit TypeExamination by

Permit Applicant &ResponsibleSupervisor

Examination by Area Authority

Process Facility Hydrocarbon Area

Before Authorisation First Day Every Day First Day Every Day

CLASS A YES** YES YES YES NO*

CLASS B NO YES NO NO NO

* - Except where a Gas Test is required, as the Area Authority may wish to do the first Gas Testeach day for Class A permits, otherwise he may delegate to an AGT (see 4.7.1 pre-validation)

** - The requirement for a worksite visit by Responsible Supervisor and Permit Applicant canbe relaxed for certain tasks at the discretion of the Production Co-ordinator, and following a Risk Assessment being completed. In addition the Responsible Supervisor may delegate the worksiteto another person licensed as a Responsible Superviosr for that area.

4.2 Restrictions on Hot Work in Hazardous Zones

Hot Work is not allowed in areas classified as Hazardous Zone 0 or Hazardous Zone 1,

unless absolutely essential. Hot Work includes all open flame work and other work thatmay cause sparks, such as grinding, electrical work or vehicle entry.) ResponsibleSupervisors must ensure that all other ways of doing the job are impractical beforeallowing Hot Work in these zones.

If all alternatives to Hot Work as a means if carrying out an activity in an areaclassified as Zone 0 or Zone 1 have been considered and ruled out as impractical, thefollowing action must be taken:

• The process system(s) which resulted in the area being classified as Zone 0 or

1 must be shut down, isolated and de-pressurised, so that the hazard whichcaused the area to be classified as Zone 0 or Zone 1 is removed for the periodof work.

• If specifically approved by the Responsible Supervisor, a pressurised habitatmay be built to create a sub-environment within an otherwise Zone 1 areawhere Hot Work may be done without creating a fire hazard. The habitat mustbe examined before use and approved by the Area Authority, ResponsibleSupervisor, and Production Co-ordinator continous gas monitoring shall berequired.

• A Job HSE Plan shall be produced identifying all hazards, and the controls

required to prevent an incident. A Class A Permit is then to be raised and thework carried out in accordance with the requirements of the Job HSE Plan.






Effective: Nov-08

4.3 Limits on the Amount of Work under an Area Authority

The maximum number of Permits that can be allowed under the control of one Area Authority is:

•6 Validated Class A Permits at any one time;

• 14 Validated Permits in total (Class A + Class B.)

The maximum number of permits that is allowed under the control of one Area Authority can be adjusted at the discretion of the Responsible Supervisor, inconjunction with the Area Authority and following a risk assessment. Alternatively,extra Area Authorities may be provided. Also, under their discretion, ResponsibleSupervisors can limit the size or number of working crews under the control of one Area Authority.

If an additional Area Authority is provided, he must remain at the work locationwhenever more Permits than allowed by the limits above are validated.






Effective: Nov-08

5 Responsibilities of Persons Signing Permits

5.1 People who Sign the Permit Documents

Table 5.1 below lists the licensed roles in the PTW System, and the job titles of peoplewho normally sign in each role.

Table 5.1: PTW System Roles

Role in PTW System Examples of Job Titles

Permit Applicant PDO Supervisor

Contractor Supervisor

Responsible Supervisor Production Supervisor

Utilities Foreman

PDO Site Representative

Area Authority Station Operator

Utilities Technician

Inspectors

Permit Holder PDO Technician Contractor Foreman

Other Affected Custodian PDO Supervisor Utilit ies Foreman

Authorised Gas Tester Person licensed as Gas Tester.

Normally, four different people will fulfil the roles of Permit Applicant, Responsible

Supervisor, Area Authority and Permit Holder. On some occasions (e.g. emergencybreakdown repairs) when it is difficult to provide four people, certain people may fulfiltwo roles. See 5.8.

The responsibilities of each role are described in the paragraphs below.

5.2 Permit Applicant

For a new Permit the Permit Applicant must:

• Fill in the Header and Box 1 of the Permit, including a clear Work

Description, and realistic planned start and completion times for the Work.

• Fill in the Application section of any Certificates required with the Permit.

• Produce a Job HSE Plan identifying work and location hazards, and

necessary controls. The worksite should be examined when producing the JobHSE Plan, except for Class B tasks at remote sites where there are known tobe no location hazards, such as overhead/underground services.

• If required by 4.1, examine the worksite with the Responsible Supervisor to

check that the Job HSE Plan includes all necessary controls.

• Obtain the signature of an "Other Affected Custodian" when required.

• Ensure that the Permit has been authorised by the Responsible Supervisor

before it is given to the Permit Holder. NO WORK may be done unless aPermit is Authorised and Validated.

• Ensure that there is a licensed Permit Holder in charge of the work for allperiods when work is being done under a Permit.






Effective: Nov-08

• Ensure that the Permit Holder is briefed on the work, hazards and controls.

When no more work will be done on a Permit, the Permit Applicant must ensure thatthe Permit Holder signs the Permit in Box 11a and gives it to the Area Authority for Cancellation.

Permit Applicants must inform the Responsible Supervisor in writing by 1600 hrs thePermits which he requires Validating for the next day.

Information on the roles that a licensed Permit Applicant can fulfil are contained in 5.8.

5.3 Responsible Supervisor

The Responsible Supervisor is responsible for the co-ordination of Permit work in hisarea, and for any worksite examinations required before Authorisation of a Permit.

For Class A Permits, the Responsible Supervisor must:

• Examine the worksite, normally with the Permit Applicant, before Authorising

the Permit, to ensure that all hazards have been identified and controlsspecified on the Job HSE Plan. He may however delegate this (see 3.2.1). Inaddition this may be relaxed in certain cases – see 6.3.1

• Decide whether it is necessary to restrict other work at the site while the Class

A work is being done.

When authorising any Permit, the Responsible Supervisor must:

• Ensure that the work description is clear, complete and correct, discussing it

with the Permit Applicant where necessary.

• Agree that the work should be done on this equipment at the proposed time.

• Ensure that all hazards have been identified.

• Review the Job HSE Plan to ensure that it includes the controls needed to

prevent harm to personnel, equipment and the environment.

• Add to the Job HSE Plan any additional controls which are required for the

work.

• Write on the Permit the time for which it is authorised for work.

• Sign the Permit to Authorise it.

Each day, the Responsible Supervisor must give the Area Authority a list of thePermits that he can validate that day. The Responsible Supervisor must have checkedthat these jobs will not conflict with each other or with operational work. The WorkTracking System printout should be used to do this.

A Responsible Supervisor shall ensure that another person taking over his

responsibilities is aware of the status of Permits in his area.

Information on the roles that a licensed Responsible Supervisor can fulfil are containedin 5.8.






Effective: Nov-08

5.4 Area Authority

The Area Authority is responsible for Validating a Permit before work starts. He willnormally do this at the Permit Issue Point for his area.

The Area Authority must obtain approval from the Responsible Supervisor beforevalidating any Permit which is not on the list given to him by the ResponsibleSupervisor.

Before Validating a Permit, the Area Authority must:

• Ensure that the worksite preparations shown on the Permit or Job HSE

Plan, including isolations, are in place.

• If required by the Permit Box 4, examine the worksite before the start of

work to ensure that it is safe for work.

• Ensure that the work will not conflict with other work in the area.

• Confirm that conditions in the work area are still safe before each Validation

of the Permit.

• Attend TRIC talks for activities he considers may hold a higher level of risk.

If, at any time, it is not safe for any work to continue, the Area Authority must stop thatwork.

When work on a Permit is finished, or the Permit reaches the end of its Authorisationperiod, the Area Authority must:

• State on the Permit whether or not the work is complete

• For work in Process Facilities, check that the worksite has been left in a

safe state.

• When required, check that the equipment is operating correctly again.

• Cancel the Permit.

An Area Authority shall ensure that another person taking over his responsibilities isaware of the status of Permits in his area.

Information on the roles that a licensed Area Authority can fulfil is contained in 5.8.

5.5 The Permit Holder

Before work starts on a Permit, the Permit Holder must:

• Understand the work content and the requirements of the Job HSE Plan.

• Tell the work party about the work content and the requirements of the Job

HSE Plan, ensuring that all members of the work party understand what isrequired.

• Ensure that the Permit is validated by the appropriate Area Authority before

starting work each day.

During the work, the Permit Holder must:

• Ensure that the Permit is displayed at the worksite whenever work is

underway

• Ensure that the Job HSE Plan and TRIC controls are complied with

throughout the work.

• Stay at or in close visual contact with the Worksite at all times, to supervise

the work party.






Effective: Nov-08

• Ensure that the worksite and equipment are safe whenever work is

suspended, signing the Permit to confirm this.

• Tell anyone who takes over as Permit Holder about the status of the work

and the requirements of the Permit and Job HSE Plan.

•Stop work and move all personnel to a safe location if conditions on site

become hazardous or the precautions on the Job HSE Plan becomeinadequate.

A Permit Holder may only be in charge of:

• One Validated Class A Permit at any one time.

Or

• Up to 4 Validated Class B Permits, if they are at the same location, and

within sight of each other, such that the Permit Holder may supervise all thetasks effectively.

When no further work is to take place under a Permit, the Permit Holder must:

• Ensure that the site and equipment have been left safe.

• Sign the Permit to indicate whether work is complete or not.

• Return the Permit back to the Area Authority

Information on the roles that a licensed Permit Holder can fulfil are contained in 5.8.

5.6 Other Affected Custodian

When a Permit will affect, or be affected by, another Supervisor’s area, this Supervisor will sign as Other Affected Custodian, and is responsible for:

• Agreeing that the work affecting, or affected by, his area can be done.

• Identifying any additional hazards due to his assets.

• Deciding on any additional precautions required due to potential hazards

relating to his assets.

Any additional controls are to be added to the Job HSE Plan

5.7 Gas Tester

An Authorised Gas Tester (AGT) is a person who has passed the Gas Testing Courseand holds a current Gas Testers Card, and has passed either a Permit to WorkSignatories or Holders Course.

For Class A Permits, the appropriate Area Authority should do the first Gas Test eachday, however this can be delegated to an AGT for certain jobs at the discretion of theResponsible Supervisor. The Area Authority must be an Authorised Gas Tester. Any Authorised Gas Tester may carry out further gas tests required during the day.

Any Authorised Gas Tester may do gas tests for work covered by a Class B Permit.

In both cases, the Authorised Gas Tester must:

• Gas test at the frequency stated on the Permit or Confined Space Entry

Certificate.

• Fill in the result of the gas test on the Gas Test Record and Sign it.

When a test result indicates that it is NOT safe to work, the Authorised GasTester must:

• Tell the Permit Holder to stop any current work.






Effective: Nov-08

• Tell the Permit Holder and Area Authority that it is not safe to work, and why,

so that the problem can be dealt with.






Effective: Nov-08

5.8 PTW Multi-Roles (Licensed Personnel)

People licensed in PTW roles may also act in other roles, as shown in Table 5.2However, there are restrictions on the number of roles that any one person may carryout on one Permit. These are shown in Table 5.3.

Table 5.2 - Roles that May be Carried out by Licensed Personnel

May act as ⇒ ResponsibleSupervisor

Area Authority PermitApplicant

Permit Holder

Licensed as ⇓

ResponsibleSupervisor

Yes Yes Yes Yes

Area Authority No Yes Yes Yes

Permit Applicant No No Yes Yes

Permit Holder No No No Yes

For normal activities, it is expected that the Responsible Supervisor, Permit Applicant, Area Authority and Permit Holder will be four different people. In emergency or breakdown situations, or for specialist work, this can sometimes be difficult to arrange.On these occasions a person licensed for one role can carry out another role as well,although there are restrictions to ensure that an independent review of the safety of thework is carried out.

Table 5.3 - Roles that can be Filled by Any One Person on a Single Permit

May act as ⇒ ResponsibleSupervisor

Area Authority PermitApplicant

Permit Holder

Licensed as ⇓


Yes Yes(See Note 1)

No No

Area Authority No Yes Yes(See Note 2)

No

Permit Applicant No No Yes Yes

Permit Holder No No No Yes

NOTES:

1. In an emergency or during night time breakdown situations, a licensedResponsible Supervisor may sign as Responsible Supervisor and Area Authority. Some Area Authorities have been licensed as ResponsibleSupervisors to allow work to proceed without calling up the daytimeResponsible Supervisor. This will allow two-man Permit operation if the PermitHolder has also been licensed as a Permit Applicant. This option is acceptableonly in the night time breakdown situation when there are no other activePermits in operation. It is not intended that the normal daytime roles of theResponsible Supervisor should be delegated to the Operators at the remotestations.

2. If the Area Authority has not been licensed as Responsible Supervisor, or if thePermit Holder has not been licensed as a Permit Applicant, it will be necessary






Effective: Nov-08

to call up the daytime Responsible Supervisor. In this case the Area Authoritywill be the Permit Applicant.






Effective: Nov-08

6 How the Permit to Work System Operates

6.1 The Permit Forms

6.1.1 Class A Permit to Work

An example of the Class A Permit is shown in Appendix 1.

Class A Permits have a RED edge colour.

The Permit comprise of an:

Original Worksite Copy (PINK)

1st Copy- Permit Issue Point Copy (GREEN)

Information Copy- Responsible Supervisor’s Copy (WHITE)

A Class A Permit shall be used for work as detailed in 3.6. and can be authorised for amaximum of 14 days, with Validation required each working day.

6.1.2 Class B Permit to Work

The layout of the Class B Permit is shown in Appendix 2.

Class B Permits have a DARK BLUE edge colour.

The Permit comprise of an:

Original Worksite Copy (BLUE)

1st Copy- Permit Issue Point Copy (GREEN)

Information Copy- Responsible Supervisor’s Copy (WHITE)

A Class A Permit shall be used for work as detailed in 3.6. and can be authorised for amaximum of 14 days, with Validation required each working day.

6.1.3 Class A and Class B Permit Forms

The Permit forms are divided into Boxes which cover the following parts of the lifecycle of the Permit:

Box No Function of Box Completed By:






Effective: Nov-08

1

2

3

4

5

6

7

8

9

10a

10b

10c

11a

APPLICATION and Work Description

Certificates attached to the Permit

Gas Testing Requirements

Worksite Examinations

AGREEMENT of Other Affected Custodian

AUTHORISATION of the Permit

Mechanical Isolation Record

Vehicle Access to Process Facility

Gas Test Record

VALIDATION of the Permit

ACCEPTANCE of the Permit

SUSPENSION of the Permit

CANCELLATION - work complete

Permit Applicant

Permit Applicant

Permit Applicant

Permit Applicant

Other Affected Custodian

Responsible Supervisor

Area Authority

Permit Applicant/Area Authority

Authorised Gas Tester

Area Authority

Permit Holder

Permit Holder

Permit Holder / Area Authority






Effective: Nov-08

Figure 6.1 – Permit Life Cycle

6.2 Applying for a Permit - Boxes 1 to 5

6.2.1 Obtaining and Filling in Permit Forms

The list in 3.6 shows by colour coding which type of Permit is to be used, depending onthe work to be done, and the area where it will be done.

Departments/Contractors who apply for Permits should keep their own pads of Permitforms. These may be obtained from PDO Administration Offices.

The Permit is divided into sections, called “boxes” in this manual. Do not writeinformation outside these boxes

Where any box on a Permit form is not used, it should be marked N/A. or have a linedrawn through it. Boxes must not be left blank.

There are a number of tick boxes (e.g. Haz Zone 0 ) on the Permit to indicate areaclassification, gas test options etc. These are to be ticked with clear ticks whenrequired.

Permits must be completed in Black ball-point pen, to ensure that all copies of thePermit can be read easily. Felt pen or pencil must not be used.

NO changes to the wording on a Permit are allowed. If changes are required, a newPermit must be raised. The only exception is correcting small mistakes, where themistake is crossed out and the change initialled by the Permit Applicant andResponsible Supervisor.






Effective: Nov-08

Additions to the work scope are NOT ALLOWED under any circumstances. If anaddition to the work scope is required, a new Permit shall be raised. It is at theResponsible Supervisor’s discretion whether an additional period of 24 or 72 hrs isrequired before he Authorises the new Permit and whether the additional workscoperequires an additional site visit.

6.2.2 Application and Work Description – Box 1

Permit Applicant

The Permit Applicant, normally the supervisor of the personnel doing the work, musthave passed the Permit Signatories course, and must be licensed as a Permit Applicant, Area Authority, or Responsible Supervisor for the area in which the work isbeing carried out.

The Permit Applicant must first choose which Permit he needs from the table in 3.6.

The Permit Applicant will then fill in the Header and Boxes 1-4 of the Permit byentering the following information into the appropriate boxes.

Header

In the Header area at the top left of the Permit:

• Write the Work Order title or a short description of the work in the Work Order

title box.

• Tick the appropriate Hotwork box (Yes or No)

Application and Work Description (Box 1)

In Box 1 of the Permit, enter:

• Permit Applicant’s Name, Post, and Telephone No.

• For Contractors, the name of the Company.

• The location of the Work (e.g. Station Name), and the Worksite (the exact

place in the Station where the work is to be done). For repetitive routine tasks(subject of a planned routine) across different stations, where the intrinsichazard is the same, (ie. NDT work, Beam Pump maintenance) and the siteconditions are similar (eg. No change in H2S classification,) the ResponsibleSupervisor may allow a number of stations or worksites to be identified on asingle permit.

• The maximum number in the workparty should be agreed at the time of permit

authorisation by the Responsible Supervisor, Area Authority, and Permit Applicant, and consideration should be given to worksite location and visibilityof work party.. A documented Risk Assessment should be presented with theJSP when the workparty strength exceeds 20.

• The Hazardous Area Classification of the worksite (shown on Hazardous Area

drawings for the Station).

• Whether the work involves working with Naturally Occurring Radioactive

Materials (NORM) or in a NORM Restricted Area (refer to SP-1170 Naturally Occurring Radioactive Materials).

• Whether the work is in an H2S Facility (shown on the H2S Facility listing in the

Area Safety Case). And if known the PPM figure of the maximum expectedlevel.

• The planned time for the work including preparation.

• Whether vehicle access to a Process Facility will be required (details of the

vehicle are to be written in Box 8).










Effective: Nov-08

• The number of the Work Order, or Engineering Work pack for the work. This is

very important, as it is used to link the permit to the daily schedule in the worktracking system.

• The numbers of any Permits for other parts of the work (in the Associated

Permit Number boxes). This will include any previous Permit for the work.

• If the work is in the “frozen plan” or not.

• A precise description of the work to be done, including the equipment to be

worked on and tools to be used.

• The activity or activities from table in 3.6 .

• Any special equipment to be used, especially if it may introduce a hazard.

The Work Description must include enough information to allow ResponsibleSupervisors to identify the hazards involved in the work and the Precautions necessaryto control them.

A single Permit must not to be used for a sequence of separate equipment where eachequipment will be shut down, worked on and put back into service whilst the other equipment remain in service. This is to avoid confusion over isolations. The onlyexception allowed is work on electrical or electronic systems, such as lighting, whichcan be isolated and worked on in sequence.

There may be a particular activity that presents the same intrinsic hazards regardlessof location e.g. NDT where the activity procedure is exactly the same each time.

When a Permit is written for fault finding, it is important that the work description doesnot allow the work party to proceed with repair activities without the risks involvedbeing assessed. The work description should include:

• A description of the fault to be investigated.

• A description of the types of fault finding work that may be done.

• The point at which work should stop, so that a further Permit for the repair canbe raised.

Job HSE Plan

The Permit Applicant shall produce a Job HSE Plan (See Section 11.2) which will:

• Identify the hazards due to work and its location,

• Define the safety precautions required.

• Include a worksite examination to identify and assess the hazards (except for

Class B Permits at remote locations where it is known that no other facilities,such as overhead or underground services could create a hazard to the workparty)

6.2.3 Certificates Attached to This Permit – Box 2

The Permit Applicant should attach the following certificates to the Permits if they arerequired:

• Mechanical Isolation1 (Appendix 3)

• Confined Space Entry (Appendix 4)

1 For Mechanical Isolations, Box 7 of the Permit may be used instead of a Certificate. However a limited number of isolation points can be accommodated. When utilising this facility thePermit Applicant should write "see Box 7" in place of the ‘Certificate Number(s)’. If moreisolation points are required than are available, or if the isolation shall be left in place after thePermit has been cancelled, requires an Isolation Certificate to be raised.






Effective: Nov-08

• Additional Gas Test Record (Appendix 4)

• Electrical Isolation

• Electrical Immobilisation

• Excavation (Appendix 6)

• Electrical Safety Document

• Radiography (Appendix 7)

• Overhead Line Clearance (Appendix 8)

The Permit Applicant shall tick " " the appropriate column of Box 2 to show whichCertificates are attached, and then write the number of each certificate in the‘Certificate Number(s)’ part of Box 2.

If more than one Permit is to be worked on within the same isolation boundary, theisolation for each permit shall be recorded separately on its own Permit or IsolationCertificate. This will minimise the risk of an isolation being removed before all work iscomplete.

6.2.4 Gas Testing Requirements – Box 3

A Gas Test is required whenever:

• Hot Work is to be done in an area where hydrocarbons or other flammable

gases/vapours may be present.

• Vehicle Access is required to a Process Facility.

• Diesel engine driven equipment is used

• Entry is to be made into a Vessel or other Confined Space.

•

Work is at a place where toxic gases/vapours may be present.

When a Gas Test is required, the Permit Applicant shall:

• Tick the gases to be tested for.

• Indicate how often the test shall be repeated.

• State if continuous monitoring for gas is required during the work.

Further guidance on gas testing can be found in 3.6 and PR-1154 Gas Testing Procedure.

6.2.5 Worksite Examinations - Box 4

The Permit Applicant shall tick Box 4, indicating when the Validator must do a WorksiteExamination (i.e. First day or every day.) The minimum requirements for WorksiteExaminations are listed in 4.1.

6.2.6 Agreement of Other Affected Custodian - Box 5

Where the Responsible Supervisor considers that the work will affect, or be affectedby, another Custodian’s area, the Responsible Supervisor shall define the mostappropriate way of obtaining the agreement of the ‘Other Affected Custodian’ (PermitHand carried by Permit Applicant, fax, email, etc.).










Effective: Nov-08

The Other Affected Custodian shall check if there are any additional precautionsneeded for the work, as a result of work or hazards in his area. If necessary, he shalladd to those specified on the Job HSE Plan. When he is satisfied that the Permit andJob HSE Plan will control the work safely, the Other Affected Custodian will sign Box 5,with name, time and date if the actual Permit is available to him. If not, writtenagreement by fax / email may be given. This shall then be attached to the Permit.

The most frequent example which requires a signature from an Other AffectedCustodian is for work within 100m of a drilling rig, where the PDO Drilling Supervisor isthe 'Other Affected Custodian'.

NOTE: No specific Training or Licensing in the PTW System is required for the Other Affected Custodian.

6.3 Authorisation and Coordination

6.3.1 Authorisation – Box 6

When Boxes 1-5 of the Permit have been completed, the Permit Applicant shall take

the Permit and Certificates to the appropriate Responsible Supervisor for Authorisation.

Responsible Supervisors require notice of a Permit, to allow time to discuss the work,and, for higher risk work, for examination of the worksite. The notice periods requiredare:

• Class A Permits- 72 hours

• Class B Permits- 24 hours.

NOTE: The Responsible Supervisor may allow shorter notice periods for essential unplanned work.

When Permits are received from Permit Applicants, the Permit Applicant shall ensurethat details of the planned Permits are entered into the Work Tracking System for the

date they are required and the Responsible Supervisor before authorising the Permitshould check that:

• All necessary information has been written in Boxes 1-5, and that the

information can be clearly understood.

• The Task Description is correct for the work to be done.

• The Job HSE Plan is attached and identifies all hazards that may affect the

work, and the controls required to ensure that the work can be done safely.

• The Isolations required have been identified (in conjunction with the competent

personnel i.e. Senior Foreman or Authorised Electrical Person and wherenecessary the Permit Applicant), and have been written on the Isolation

Certificate or in Box 7 (mechanical) of the Permit. All Isolation Certificateshave been identified, and they have been attached to the Permit, with their numbers written on the Permit.

• The necessary Electrical Safety Documents have been raised, and signed by a

Senior Authorised Electrical Person if Electrical Work is involved. Their numbers should also be written in Box 2 of the Permit.

• Any gas testing requirements have been listed in Box 3 and are correct for the

types of gas releases that might occur during the work.

• The permit qualifies for pre-validation as per 6.7.1. If it does qualify, this should

be noted as a comment in Box 6 - Authorisation






Effective: Nov-08

If additional Preparations or Precautions are required, the Responsible Supervisor shalladd them to the Job HSE Plan and ensure they are agreed with the Permit Applicant.

If too many changes are needed to a Permit or other documents required for the work,the Responsible Supervisor may reject the Permit, and ask for a new one to be written.The Permit Applicant should be informed of what was wrong with the first Permit.

For Class A Permits, the Responsible Supervisor must examine the worksite, with thePermit Applicant, to ensure the work is fully described on the Permit and that all safetyaspects have been considered. However, there are certain scenarios where this can berelaxed under the direction of the Production Co-ordinator, and only following adiscussion by all parties, and a Risk Assessment completed.

For Class B Permits the Responsible Supervisor need not examine the worksite unlesshe considers this necessary.

Once he is satisfied that the Permit is correct for the work, the Responsible Supervisor shall set an Authorisation period for the Permit. The maximum Authorisation period is14 days. The period set should take account of the planned work schedule stated inBox 1, to avoid Permits being authorised for periods much longer than required, butalso to prevent a further Permit being required if the job should over-run slightly.

The Responsible Supervisor shall then to write his name and post, and sign and dateBox 6.

Once a Permit has been authorised by the Responsible Supervisor, the only changesthat can be made to it are the addition of new controls to the Job HSE Plan. Thesechanges are only to be made by the Responsible Supervisor or the Area Authority.Deletion of controls is not allowed. If any changes to controls are made, the Permit Applicant shall be informed.

When the Permit has been authorised, the Responsible Supervisor shall ensure thatthe Work Tracking system is updated to show the status as Authorised.

The Permit Applicant is then responsible for ensuring that the Permit Holder is fullybriefed on the work content, precautions required and the requirements of the Job HSE

Plan.

NO ONE MAY AUTHORISE A PERMIT FOR WORK THAT THEYWILL DO THEMSELVES

6.3.2 Safety Coordination by Responsible Supervisor

The total workload at each location will have been reviewed at the daily planningmeeting for the Area. This should identify and eliminate any possible conflicts.However, it is most important that the Responsible Supervisor looks in detail at thePermit requests for the following day, and eliminates any safety conflicts.

At 1600 hrs each day (or earlier during Ramadan) the Responsible Supervisor shallreview the work for each location for the following day, using:

• The daily schedule (from Work Tracking system Authorised Permits due to

start next day)

• Permits for any additional work that is urgently required.

• Lists from Permit Holders / Permit Applicants showing which Permits have not

been completed and will be required the following day.

The Responsible Supervisor shall identify any potential conflicts between activities,and decide which Permits may be validated for work the following day. TheResponsible Supervisor is then to update the status of these Permits to Validatedwithin the Work Tracking system.






Effective: Nov-08

The Responsible Supervisor shall re-check the list of Validated Permits for eachlocation before start of work on the following day, and then give or fax the TrackingSystem Report for each location to the Area Authority. Class A Permits in a ProcessFacility should only be allowed to be validated if the Area Authority will remain at theFacility when work is underway.

There will be a further check for conflict by the Area Authority, at the Permit Issue Pointwhen Permits are validated. (See 6.8)

6.4 Briefing of the Permit Holder

When the Permit is authorised, it is returned to the Permit Applicant. The Permit Applicant must then brief the Permit Holder on the work and hazards, and how thesewill be controlled, using the Job HSE Plan. The Permit Applicant is then to give thePermit, Certificates and Job HSE Plan to the Permit Holder, who will take them to the Area Authority for Validation, after any necessary Isolation.

It is essential that the Permit Holder brief the Area Authority on the scope of the workthat is to take place. The Area Authority shall be absolutely certain of the scope of thework before allowing any work to commence.

6.5 Isolations

6.5.1 Mechanical Isolation and De-Isolation Approval and Recording - Box 7

Where a mechanical isolation is required for a task and involves not more than 10Isolation Points, the Isolation may be recorded and authorised in Box 7. Box 7 of thePermit is not to be used for isolations for vessel entry. More complex isolations requirean Isolation Certificate. Details of the Isolation process are included in Section 7.

When Box 7 is being used, details of the isolation are to be written on the Permit by theResponsible Supervisor or other competent person. The Responsible Supervisor is

then to authorise the Isolation by signing Box 7. When the equipment has beenisolated, the person who did the Isolation inserts the Tag Label Nos. and also signs Box7.

6.5.2 Electrical Isolations

Electrical Isolations/Immobilisations must be authorised, recorded and done inaccordance with PDO Electrical Safety Rules. Box 7 is not to be used for ElectricalIsolations.

6.6 Vehicle Access - Box 8

Vehicles are not permitted to enter or to drive within 50m of a Process Facility.

If a vehicle is required to enter a one of these areas as part of a work activity, a Permitis required. Exceptions are that a Permit is not required for:

• Vehicle access to a pig trap area for pipeline pigging operations covered by

authorised procedures and listed in the approved programme.

• Travel to and from the facility in crew vehicles via the normal marked route to

the facility parking area.

• Use of delivery trucks, as covered in 15.5.6.






Effective: Nov-08

If vehicle access to a Restricted Area is required, the Permit Applicant shall write inBox 8 of the Permit for the work.

• The vehicle type.

• The location to which access is required, together with an associated route plan

which shall be attached to the permit. The route plan shall be a plot plan of thestation with the vehicle route marked clearly on it.

• The reason for vehicle access.

NOTE: Vehicle access should be granted for delivering essential materials or equipment only. It should not be used for general access or transport of personnel, and the vehicle should be removed immediately the delivery is completed. In the case of crane use, this requires continuous gas monitoring.

A satisfactory Gas Test is required before each vehicle access or movement. Detailsand results of the Gas Test are to be entered in Box 9. The Station gates must beclosed after each entry or exit.

In addition, the Permit Holder should verify the vehicle is free of mobile phones

or other sources of ignition e.g. Matches or lighters.NOTE: This approval is not to be used to authorise the passage of high vehiclesbeneath overhead power lines, for which a separate Overhead Line ClearanceCertificate is required.

6.7 Co-ordination and Validation at the Issue Point - Boxes 9 & 10a

Permits must be validated by the Area Authority responsible for the worksite, beforework can start.

Before Validating a Permit, the Area Authority must carry out a co-ordination check for safety conflicts between activities. To do this he must:

• Check the Work Tracking list to ensure the Permit is Valid for that day. If it is

not on the list, the Responsible Supervisor will give guidance on whether thatPermit may be validated.

• Check that there are no other conflicting activities, which may be operational,

covered by other Permits, or covered by Well Handover Certificates, Pigging Authorisation Forms etc.

• Mark the location of the work on the Permit Location Board (See Section 8.3)

When the Area Authority is sure that the work will not cause a conflict, he shall satisfyhimself that the worksite is safe for the work. To do this, he must:

• Do any Area Authority preparations required by the Job HSE Plan to make the

worksite safe for work to start.

• Where required by 4.1, examine the worksite with the Permit Holder to ensure

that the Permit Holder preparations as required by the Job HSE Plan havebeen completed to make the worksite safe for work to start.

• If Isolation is required and has not already been completed, do the Isolation,

and complete the Isolation Certificate/Box 7 of the Permit as appropriate.

• If a Gas Test for Class A work is required, do this immediately prior to

Validation of the Permit, with results recorded in Box 9.

• Ensure that the Permit Holder understands the work and the precautions which

are required.






Effective: Nov-08

When satisfied that it is safe for work to start, the Area Authority shall validate thePermit and initial the Area Authority Preparations part of the Job HSE Plan.

THE VALIDATION PERIOD SHALL BE A MAXIMUM OF 12 HOURS,

OR THE END OF THE SHIFT WORKED BY THE AREA AUTHORITY,

WHICHEVER IS SOONER.

Class A Permits should only be validated if the Area Authority will remain in the area of the work when work is underway.

6.7.1 Pre-Validation

Pre-validation is where the Area Authority agrees during daily suspension to pre-validate a permit from 07.00 the following day. The conditions for this process aredetailed below.

PRE-VALIDATION CAN NOT BE USED FOR THE FIRST VALIDATION.

• The type of task falling into this category is agreed at the time of permit

submission between the Permit Applicant and Responsible Supervisor and onlyapplies to work outside of a process area.

• The work must be an ongoing repetitive job e.g. Flowline installation in a

hydrocarbon area, where the job task or method will not change the followingday. The task progress and any pre-validation conditions must be discussedwith the Area Authority at the time of daily permit suspension,

• The permit is moved to the “validated” section of the permit rack with a note

attached and visible as PRE-VALIDATED for 07.00.

• The work cannot start until after 07.00 the following day.

• Any pre-validation gas tests are carried out by an AGT (who may or may not be

the Area Authority) at the discretion of the Area Authority.• The Permit Holder is still responsible for carrying out a robust Tool Box Talk.

6.8 Acceptance by the Permit Holder - Box 10b

When satisfied that the worksite is safe, the Permit Holder shall sign Box 10b of thePermit in the presence of the Area Authority.

THE PERMIT HOLDER CANNOT ALSO BE THE AREA AUTHORITY.

The Permit Holder has the right to refuse to sign the Permit Acceptance until he issatisfied that the worksite is safe.

By signing the Permit the Permit Holder is agreeing to the following:

• That he fully understands the work and precautions.

• That all members of the work party are fully briefed.

• That the Job HSE Plan will be complied with.

• That the Permit will always be displayed at the worksite in a plastic wallet when

work is in progress.

• That no work will be done unless the Area Authority has validated the Permit.

• That the worksite will be left in a safe condition on completion or suspension of

work.






Effective: Nov-08

A Permit Holder may only be in charge of:

• One Validated Class A Permit at any one time.

• Up to a total of 4 Class B Permits, if they are at the same location, and within

sight of each other, such that the Permit Holder may supervise all the tasks

effectively.A Permit Holder in charge of a Validated Class A Permit may not be in charge of Class B Permits at the same time.

The Permit Holder’s signature must appear on both the Worksite and Permit Rackcopies of the Permit. This means that:

• When work is in a station, the Area Authority should put the Worksite and

Permit Rack copies of the Permit together for the Permit Holder to sign.

• Where the worksite is remote from the Permit Issue Point, and a Worksite

examination before work starts is required by 4.1, the Area Authority shall takethe Worksite and Permit Rack copies of the Permit to the worksite where thePermit Holder can sign them.

• Where the worksite is remote from the Permit Issue Point, and a Worksite

examination is not required by 4.1, the Permit Holder shall sign the GREENcopy of the Permit before leaving the Permit Issue Point, to indicate that heintends to start work. He shall sign the worksite copy of the Permit at theworksite, when he is satisfied that it is safe for work to start.

No Work May Take Place Under The Permit Until:

• The Permit has been validated.

• The Permit Holder has signed to accept it.

• The Permit is displayed at the Worksite.

The Area Authority's verbal approval shall be obtained before one Permit Holder handsover responsibility for a Valid Permit to another Permit Holder. The new Permit Holder shall accept the Permit by signing the next line in Box 10b of the Worksite and PermitRack copies of the Permit. When remote sites are involved, the new Permit Holder shall contact the Area Authority for approval and sign the worksite copy, the Area Authority is then to write the name of the new Permit Holder in Box 10b of the PermitRack copy.

During the handover briefing, the outgoing Permit Holder should brief the new PermitHolder on the topics suggested for briefing of the work party in 6.11.

6.9 Actions after Validation

When the Permit has been signed by both the Area Authority and Permit Holder, the

top (worksite) copy (PINK or BLUE) should be given to the Permit Holder, together withthe Worksite copy of any associated Certificates. The Permit Holder is responsible for ensuring that the Permit and Job HSE Plan are placed in an approved wallet, displayedin a safe position at the Worksite where it can be seen clearly, and is kept there whilstwork is being done.

NO WORK IS TO BE DONE UNLESS A VALIDATED PERMIT ISCLEARLY DISPLAYED AT THE WORKSITE IN A PLASTIC WALLET.

Work may now start, following briefing of the workforce (see 6.11 below.)

The Area Authority is to place the GREEN copy of the Permit, together with PermitRack copies of any associated Certificates in the VALIDATED section of the PermitRack.






Effective: Nov-08

6.10 Briefing the Work Party – the Toolbox Talk

Toolbox talks are short briefings given by either the Permit Applicant or Permit Holder to all who are involved in the work controlled by a permit. These briefings are givenbefore the work commences. The Permit Holder is to ensure that the Work Party is

fully aware of the Work Content and Precautions to be taken.

Toolbox Talks are given for:

• All jobs.

• Routine jobs when personnel are unfamiliar with the location or the tasks to be

undertaken.

• In cases where personnel may have difficulty reading or understanding the

Permit, or Certificate, or safety conditions associated with a job.

Toolbox talks:

• Discuss the hazards of the job.

• Explain the plan for the activity

• Identify individual responsibilities

• Review the procedures to be used during the work.

Topics that are covered by Toolbox Talks include:

• The work to be undertaken at the work location.

• The work plan and worksafe methods to be used to do the work safely.

• What individuals in the work party will actually be doing during the completion

of the work.

•

Particular skills of individuals involved.• Access and Evacuation procedure refreshers.

• The work environment and any particular hazards that have controls.

• The work description of the Permit.

• The Job HSE Plan precautions, protection and Worksite preparations.

• The equipment involved.

• The materials to be used.

• Any isolations which need to take place.

• Any potential conflicting activities.

• Questions and discussion from all work party personnel.

NOTE: A reference card (TRIC) for use by Permit Holders when giving Toolbox Talks isavailable, and shall be used.

6.11 Supervision of the Work

Throughout the work, the Permit Holder is responsible for ensuring that the Work Partycomplies with the requirements of the Permit and Permit system. The Permit Holder must remain at, or in close visual contact with, the worksite at all times.

NOTE: The Job HSE Plan and the TRIC are the most useful tools to ensure work is

carried out safely at the work location. It needs to be applied diligently at every stage of the job.






Effective: Nov-08

6.12 Gas Test Record - Box 9

Gas Testing and Monitoring shall be carried out as required by Box 2 of the Permit.

For Class A Permits, the appropriate Area Authority is to do the first Gas Test eachday. The Area Authority must be an Authorised Gas Tester. Any Authorised GasTester may carry out further gas tests required during the day.

Any Authorised Gas Tester may do gas tests for work covered by a Class B Permit.

The results of the Gas Test are to be recorded in Box 9, except for Confined Spaceresults, which are to be recorded on the Confined Space Entry Certificate. When Box 9is full, the Additional Gas Test Record form (See 10.2.3) shall be used to record further results.

Gas Tests are to be done before work starts, and at the frequency stated on the Permit. An extra test is required before work re-starts, if the worksite is left unattended for morethan one hour.

In addition to Gas Testing, continuous monitoring may be required. This will have beenspecified in Box 2 of the Permit. A Permit Holder may supervise work for whichcontinuous gas monitoring is required without being licensed as a Gas Tester. He must,however, have been trained in the use of the gas monitor.

If gas or other hazardous atmosphere is found at any stage, work must stop. ThePermit is to be suspended as described in 6.14. The Responsible Supervisor must beinformed as soon as possible.

6.13 Suspension of Work - Box 10c

6.13.1 Reason for Suspension

A Permit must be suspended if any one of the following occurs:

a. An unsafe situation develops which requires the work to be stopped, for example:

o A Reportable Incident occurs during the work.

o A Gas or Oil leak occurs near the work.

o Anyone suspects that an unsafe situation exists. In this case he has the

Authority and Responsibility to stop the work.

b. The work is delayed or interrupted for more than 4 hours, for any reason.

c. The authorisation or Validation period expires.

d. The work needs to be stopped to allow conflicting work of a higher priority toproceed. In this case the Permit Holder is to be instructed to stop work by the

Responsible Supervisor/Area Authority and is to be informed of the reasons. Itis the responsibility of the Area Authority to ensure that it is safe to stop workand leave the Worksite in its current condition.

e. The equipment is to be de-isolated so that it can be tested after being workedon.






Effective: Nov-08

6.13.2 Permit Suspension

When a Permit is to be suspended, the Permit Holder shall take the following actions:

• Check that the Worksite and equipment affected by the work have been left in

a safe condition.

• Sign Box 10c of the PINK/BLUE copy of the Permit to confirm that work has

been suspended.

• Take the Permit to the Issue Point, sign the Green copy and give it to the Area

Authority who will keep it there until ready to re-start work. If the work is in aProcess Facility, this must be done. For work at remote locations, theprocedure below may be used.

• For some work at remote locations, it is not practicable for the Permit Holder to

return the Permit to the Issue Point when work is stopped. For this type of work the Worksite Supervisor should agree with the Area Authority that thePermit will be taken to an agreed collection point (e.g. a box at the Permit

Issue Point or PDO Camp offices.) The Area Authority will then take thePINK/BLUE copies of suspended Permits back to the Issue Point the next timethat the station is open.

NOTE: The steps above may be used for pre-validations with agreement from the Area Authority. This may require the worksite and the permit board copies of the permit being signed separately.

Permits do not require to be suspended for meal breaks. However if a work party arecalled to another more urgent job before they have finished the first one, during a mealbreak away from the station, the Holder is to inform the Area Authority, who will inspectthe worksite and suspend the permit by signing Box 10c himself.

If work is not complete, but cannot re-start until after the Permit Authorisation periodhas expired, the Permit is to be cancelled by signing it off in Box 12b - “ Work Not

Completed”. Isolations may be retained under the Extended Period Isolationprocedure described in Section 7.

It is not necessary to suspend a Permit before it is cancelled.

Once a Permit has been suspended no work covered by that Permit may be doneuntil the Permit has been Re-Validated as described in 6.16 below.

Worksite and Permit Issue Point copies of all suspended Permits are to be kept in theSuspended section of the Permit Rack.

If a Permit covers more than one station (see 6.2.2), when suspended to move toanother station, the worksite and permit board copies should be gathered together andtaken to the next station.

6.13.3 Stoppage and Re-Starting of Work following an Alarm in a Station

Stopping Work

All work is to stop immediately following an Evacuation Alarm in any facility. EachPermit Holder is to ensure that his worksites have been left in a safe condition, and isthen to evacuate the site as quickly as possible.

If the unplanned stoppage of work may cause a dangerous condition, the work party isto take the emergency actions stated on the Job HSE Plan.

When the alarm condition has cleared, the Worksite Copy of the Permit is to be takento the Permit Issue Point or Area Authority.






Effective: Nov-08

Re-Starting Work

If the Alarm was not caused by an actual alarm condition, the Area Authority mayverbally re-authorise each Permit Holder to re-start work once the all clear signal isgiven.

Where the Alarm was caused by an actual alarm condition, the Responsible Supervisor

or Area Authority may require Permits to be suspended and Re-Validated following thenormal Re-validation procedure. A further Worksite examination is required if theproblem which caused the alarm could have changed conditions at the worksite.

6.14 Changeover of Personnel

6.14.1 Changeover of Area Authority during Validation Period of Permit

When a new Area Authority takes over, he must re-validate all Permits in his area. For those within his station and the immediate area, he will visit the sites and sign bothcopies in Box 10a. For Permits at remote locations he will sign the green copy at theIssue Point when he takes over and the worksite copy is returned at the end of the day.

6.14.2 Changeover of Permit Holder

Within a Process Facility, the new Permit Holder must obtain the Area Authority’sapproval to change and sign Box 10b of both copies of the permit. At remote locations,where he is unable to contact the Area Authority, he must sign the worksite copy whenhe takes over and the green copy when he returns to the station. The outgoing Holder is not to leave the worksite until he has fully briefed the new Holder and the new Holder has signed to accept the Permit in his presence.

6.15 Permit Re-validation - Boxes 10a & 10b

The Re-validation process is exactly the same as the Validation and acceptanceprocess described in 6.8 and 6.9, although the requirement for worksite inspections willdiffer, as shown in 4.1.

If the Area Authority changes during the work period the new Area Authority is to Re-Validate all Permits in his area. This is done by signing ALL the green copies at thePermit Issue Point.

For Class ‘A’ Permits he must examine the worksites and sign the Worksite Copy of each Permit.

For Class ‘B’ Permits the Worksite Copy is to be signed by the new Area Authority onthe return of the Worksite Copy to the Permit Issue Point.

After Re-validation of the Permit, the Permit Holder is to satisfy himself that theWorksite is safe, and sign Box 10b to accept the Permit.

Once all spaces for Re-validation have been used, a new Permit is required.






Effective: Nov-08

6.16 Permit Cancellation - Boxes 11 a) and 11 b)

6.16.1 Requirements for Cancellation

A Permit shall be cancelled when any of the following occur:

• The Work is complete.

• The Work has not been completed, but a new Permit is required.

• The Permit has reached the end of its Authorisation Period.

• The Work is to be suspended until a date after the Permit Authorisation Period,

e.g. when spares will be required to repair an item of equipment.

• The Work to be done is found to be different from the Work Description on the

Permit. A new Permit must then be obtained for the work.

6.16.2Permit Return by Permit Holder Box 11a is to be used when the Work has been completed. It shall also be used whenthe Work has Not Been Completed, but a new Permit is required.

Example: The work will continue past the authorisation dates on the Permit, or the work to be done is found to be different from the Work Description on the Permit.

Box 11a of the PINK/BLUE and GREEN copies of the Permit is to be signed by thePermit Holder if the work:

- is complete and the work has been properly done.

OR

- the work has stopped, but is not complete.

A signature in the box confirms that the worksite has been left in a clean and safecondition, with all tools and equipment removed.

When Box 11a has been signed, no further work may take place under that Permit.

For work at remote locations, it is sometimes not practicable to return the Permit to theIssue Point when work is complete. In this situation, the Worksite Supervisor shouldagree with the Area Authority that the Permit be taken to an agreed collection point(e.g. a box at the PDO Camp offices.) The Area Authority will then take thePINK/BLUE copies of completed Permits back to the Issue Point to match them withthe Issue Point copies, and sign them off.

6.16.3 Permit Cancellation by Area Authority

Box 11b is to be used where the Permit has reached the end of its AuthorisationPeriod. It shall also be used when the work is to be suspended until a date after thePermit Authorisation Period.

Where the work is in a Process Facility, the Area Authority should do a worksiteinspection and sign in Box 11b, to ensure that it has been left in a clean and safecondition. When satisfied that the worksite has been left in a safe condition the Area Authority shall complete and sign Box 11b of the PINK/BLUE and GREEN copies of the Permit.






Effective: Nov-08

Before signing Box 11b:

- All isolations are removed and the Isolation Certificate or Box 7 signed off bythe Area Authority as confirmation that this has been carried out.

OR

- An Extended Period Isolation (EPI) has been raised where isolations are toremain in place. The Isolation Certificate must be converted to an EPI bycompleting Box 6 of the Isolation Certificate. If Box 7 of the Permit has beenused to authorise these Isolations, a new Isolation Certificate is to be raised bythe Area Authority. He is to write all the details of the Isolation on theCertificate, and convert it to an EPI by filling in Box 6 of the IsolationCertificate. The number of the EPI Isolation Certificate is to be written in Box11b of the Permit.

When Box 11b has been signed, no further work may take place under that Permit.

6.17 Permit Archiving

The Responsible Supervisor must ensure that Worksite copies of all CancelledPermits and associated documents (Job HSE Plans, Certificates etc.) are kept in anarchive file for a period of six months. Other copies of the documents are to bedisposed of. There is to be a separate file for each month, with the documents sortedby Cancelled date.

6.18 Permit Processing Procedure

The following steps summarise the Permit Processing Procedure together with the useof the Permit Issue Point Facility.

1. APPLICATION Permit Applicant

EXAMINE Worksite to check work and identify hazards (except for Class B Permit atremote sites with no risk from overhead lines, buried services etc)

COMPLETE Permit Applicant's parts of the Permit.

COMPLETE Permit Applicant's parts of PTW System Certificates (Isolation, etc.) andattach to Permit.

PRODUCE Job HSE Plan and attach it to Permit.

GIVE Completed documents to Responsible Supervisor.

2. PLANNED PERMITS Responsible Supervisor

CHECK Permit Applicant’s details and dates proposed for work.

ENTER Permit details into Work Tracking System as a planned Permit.

EXAMINE Worksite with Permit Applicant, if required (Class A), to confirm protectionand precautions are suitable for the conditions.






Effective: Nov-08

3. AUTHORISATION Responsible Supervisor

CHECK Permit has been entered into Work Tracking System as a planned Permit.

CHECK Correct certificates are attached.

Permit and Certificate boxes are correctly completed.

If another custodian is affected.

Job HSE Plan is correct for the work.

IDENTIFY If an Isolation is required and nominate competent person to identifyisolation points (Senior Foreman / Electrical Competent Person).

SET Authorisation period for Permit.

SIGN Permit and Certificates to Authorise them.

GIVE Permit and certificate copies to Permit Applicant (keep white copy in file).

CHANGE Permit status in Work Tracking System to Authorised, having checked for

possible conflicts with other work.

4. PREPARATION Permit Applicant

BRIEF The Permit Holder on the work and Hazards.

GIVE Permit, Certificates and Job HSE Plan to Permit Holder.

5. PREPARATION Area Authority

OBTAIN Permit and Certificates from Permit Holder, place in the Authorised

section of the Permit Rack.CHECK Permit is Valid on Work Tracking System listing or agreed for pre-

validation.

WRITE Any isolation details on the Isolation Certificate and tag labels.

CHECK For any conflict if the isolation or work is done. Do not allow the isolationor work to proceed if there may be a safety conflict.

DO The isolation, attaching chains and labels.

RETURN To the Permit Issue Point.

SIGN The Isolation Certificate and tag label stubs.

PLACE Tag label stubs and Isolation Certificate in the Authorised section of the

Permit Rack with the Permit.

MARK The isolation on the location board with correct colour pegs and labels.






Effective: Nov-08

6. VALIDATION Area Authority

CHECK Any isolations are correctly displayed on location board and signed up onthe certificate.

CHECK For any conflicting work on the Permit Location Board.CHOOSE A marker from the board and write its number on the top of the Permit.

INSPECT The worksite with the Permit Holder (if required) taking the Permit andJob HSE Plan with you.

PREPARE Worksite as required by Job HSE Plan.

CHECK All preparation controls on the Job HSE Plan are in place, initialling eachcontrol in the Area Authority section of the Job HSE Plan.

SIGN The Permit to VALIDATE or PRE-VALIDATE it

OBTAIN Permit Holders signature to ACCEPT the Permit and Job HSE Plan.

GIVE The RED/BLUE Permit and YELLOW isolation certificate copies to thePermit Holder to display at the worksite.


PLACE The marker previously chosen on the location board, at the location of theworksite.

PLACE The GREEN Permit copy in the VALIDATED section of the Permit Rackwith GREEN Certificate copies and isolation tag label stubs.

7. BRIEFING Permit Holder

BRIEF The work party on the job, the hazards, the precautions and the actions to

take in the event of an emergency.PLACE The RED/BLUE Permit copy, Job HSE Plan and YELLOW isolation

Certificate copies in the wallet and display it at a prominent position at theworksite.

THE WORK MAY START AFTER THE PERMIT HOLDER HAS FULLYBRIEFED THE WORK PARTY AND DISPLAYED THE PERMIT

8. SUSPENSION (activities close to Permit Issue Point) Permit Holder

CHECK The work site has been left clean and safe.

RETURN The Permit to the Area Authority at the Permit Issue Point.

SIGN Both copies of the Permit in Box 10c.

9. SUSPENSION (activities at remote site) Permit Holder

CHECK The work site has been left clean and safe.

SIGN Top copy of the Permit in Box 10c.

RETURN The Permit to previously agreed return point.

INFORM Responsible Supervisor of Permits and pre-validations required for nextday (May be done by the Applicant)






Effective: Nov-08

10. SUSPENSION (activities close to Permit Issue Point) Area Authority

CHECK Permit Holder has signed Permit Box 10c and, for work in ProcessFacilities, has left his worksite clean and safe.

PLACE Both Permit copies in the SUSPENDED section of the Permit Rack.

REMOVE The marker from the location board.

NOTE: If the job has not finished, the marker should be put where it can be used for the same Permit again and not used for another Permit.

11. SUSPENSION (activities at remote site) Area Authority

REMOVE Green copy of Permit from Permit Rack, write in Box 10c “Remote Site”.

PLACE Green Permit copy in the SUSPENDED section of the Permit Rack.


COLLECT Top copy of Permit from agreed collection point (next day).

PLACE Both Permit copies in the SUSPENDED section of the Permit Rack whennext at the Permit Issue Point.

THE WORK HAS NOW STOPPED IF WORK IS COMPLETE, GO TOSTEP 14.

IF THE WORK IS CONTINUING: PERMIT HOLDER WILL RETURN FORNEXT WORKING PERIOD.

IF PERMIT HOLDER HAS CHANGED, A FULL BRIEFING BY APPLICANTOR PREVIOUS PERMIT HOLDER SHOULD BE GIVEN

12. RE-VALIDATION Area Authority

CHECK Work Tracking System list to see that the Permit is on today's list of ValidPermits.

CHECK Any isolations are still correctly displayed on Permit Location Board.

CHECK For conflicting activities on Permit Location Board.

TAKE Both copies of the Permit and certificates from the rack.

INSPECT The worksite with the Permit Holder, if required.

CHECK Requirements of Job HSE Plan are being met.

SIGN Both copies of the Permit Box 10a to RE-VALIDATE or, PRE-VALIDATEit

OBTAIN Permit Holder's signature in Box 10b to ACCEPT the Permit.

GIVE RED/BLUE Permit copy to the Permit Holder to display at the worksitewith the job HSE plan (after checking it is still valid) with the YELLOWIsolation Certificate copy.


CHOOSE The marker from the board that has the same number as the number onthe top of the Permit.

PLACE The marker at the location of the worksite, on the Permit location board.

PLACE GREEN Permit copy in the VALIDATED section of the Permit Rack withGREEN certificate copies and isolation tag label stubs.






Effective: Nov-08

13. BRIEFING Permit Holder

BRIEF The work party on the job, the hazards, the precautions and the actions totake in the event of an emergency.

PLACE The worksite copy of the Permit, Job HSE Plan and Certificate copies in

the wallet and display it at a clear position at the worksite.

WHEN THE JOB IS COMPLETED

14. CANCELLATION Permit Holder and Area Authority

Permit Holder

CHECK That the worksite has been left clean and safe.

RETURN The Permit to the Area Authority at the Issue Point

SIGN Both copies of the Permit in Box 11a to Cancel it

Area Authority

CHECK Permit Holder has signed the correct Permit Box and left his worksiteclean and safe.

PLACE Permit copies in the SUSPENDED section of the Permit Rack


CHECK That it is safe to de-isolate, if applicable, and that this will not conflict withother isolations.

OBTAIN Authorisation to de-isolate, if applicable.

REMOVE Small third part of tag from tag label stubs.

DO THE De-isolation, checking tag labels against third part of tags, returningchains, labels and cable ties and checking the worksite is left clean andsafe.

CHECK Tag labels match the tag stubs in the rack.

SIGN Isolation Certificate for de-isolation complete.

REMOVE Isolation pegs and labels from location board.

SIGN Permit box 11b to Cancel it.

RETURN Permit to the Responsible Supervisor for Archive.

15. ARCHIVE Responsible Supervisor

ENTER The status as Cancelled in the Work Tracking System. The system willautomatically Archive all Cancelled Permits when the Archive icon isselected.

RETAIN The worksite copies of the Permit and Certificates and the Job HSE Planin a safe place for 6 months.






Effective: Nov-08

6.19 Permit Validation Exceptions

For restricted work categories in Seismic and Electrical works in remote locations (suchas the passage of seismic crews under overhead lines), the permit validation from the Area Authority is able to be faxed provided the Permit Applicant and Area Authority

agree that it is appropriate to do so.






Effective: Nov-08

7 Control of Isolations

7.1 Isolation Requirements

The following requirements apply to all isolations.

7.1.1 Competency

The Responsible Supervisor must ensure that the person nominated to do anIsolation/De-Isolation is competent for the task.

7.1.2 Security

Each isolation is to be secured in the required position so that the accidental release of the energy source (or obstruction of draining/venting) is prevented.

7.1.3 Labelling

The isolation is to be labelled with a high visibility “Isolation Label” so that anyone canimmediately see why an isolation is in place, and should not be tampered with.

7.1.4 Recording

Isolations are to be recorded in Box 7 of the Permit for the work requiring it, or, for complex isolations, on an Isolation Certificate. For complex isolations, marked-up P &IDs or line diagrams should be attached to the Isolation Certificate. The only exceptionis Unrecorded Isolations, as described in 7.6.

7.1.5 Visibility and Co-ordination

The Area Authority must record all isolated equipment on the Permit Location Boards(See Section 8). This is done to help the Responsible Supervisor and Area Authority toensure that equipment is only isolated or de-isolated when it is safe to do so.

7.2 Electrical Systems

All electrical isolations are to be done in accordance with the Electrical Safety Rules(ESRs) and Electrical Safety Operational Procedures (ESOPs.)

7.3 Mechanical Systems

Mechanical Isolations are to be done in accordance with PR-1076 – Isolation of

Process Equipment .

7.4 Approval for Isolation

All isolations, except Unrecorded Isolations, must be fully described in Box 7 of aPermit or an Isolation Certificate. All documented mechanical Isolations are to beauthorised by the Responsible Supervisor, who must define the isolation point and signeither Box 7 of the Permit, or Box 4 of the Mechanical Isolation Certificate. ElectricalIsolations are to be approved in accordance with the requirements of Electrical SafetyRules (ESRs) and Electrical Safety Operating Procedures (ESOPs).










Effective: Nov-08

7.5 Permits for Spading

When it is necessary to fit blanks or spades to isolate equipment, a separate Permit isrequired to ensure that the isolation of vessel or system is controlled properly beforethe work on the vessel/system can start.

7.6 Unrecorded Isolations

It is not necessary to record mechanical isolations on the Permit or Isolation Certificateif BOTH of the following conditions are met:

a. The isolation is to be done by a competent person from OperationsDepartment, nominated by the Responsible Supervisor, for the purpose of calibration or minor repair/replacement work that he will do himself, and

b. The isolation will be removed before the end of the working period.

Minor repair/replacement work is work that can be done without the person doing thework leaving the worksite. Examples are pressure gauge replacement, isolations for faultfinding etc. In this situation, the requirement for Isolation is to be included in the

Work Description on the Permit.

7.7 Isolation Process

7.7.1 Isolation

When the isolation has been approved by the Responsible Supervisor, the PermitHolder is to take the Permit and Isolation Certificate, if applicable, to the Area Authorityor appropriate Electrical Person, to request isolation.

The Area Authority or Electrical Person is then to:

• Check the Permit Location Board to ensure that the isolation will not conflict

with any other work.• When satisfied that it is safe to isolate, do the isolation, tagging and securing of

the valves/switches etc., as required by 7.7.2 and 7.7.3.

• Prove that the isolation has fully isolated the systems and equipment from

pressure/electricity as required by 7.7.4.

• If part of the isolation is at a remote location under the control of another Area

Authority, fax a copy of the Isolation Certificate to that location and obtain areturn fax with a signature that the remote isolation is complete.

• Sign the Permit (Box 7) or Isolation Certificate to confirm that isolation is

complete. Then add the marker and details of the isolation to the PermitLocation Board.

7.7.2 Tagging of Isolation Points

Every valve, spade, switch, breaker etc. used in an isolation (except for isolations thatdo not require Isolation Certificates), must be marked with the correct type of tag label.Tag labels are used for the isolation of Valves, Spades and Electrical Equipment (Thetag label is shown in the PTW Materials Supply Catalogue).

The tag label has three parts. The first part (the part of the tag with the attachmentloop) is to be attached to the isolation point. The other two parts are to be attached tothe Permit Issue Point copy of the Permit or Isolation Certificate and kept at the IssuePoint until the isolation is removed.

When the isolation is removed the tags that have been removed must be comparedwith those at the Permit Issue Point to confirm that all isolations have been removed.






Effective: Nov-08

The third part of the tag (the smallest part) is provided to assist in the removal of complex isolations. This part is kept attached to the middle part of the tag at the IssuePoint until de-isolation is required. The third parts can then be detached and taken tothe site by the de-isolator to ensure he only de-isolates the correct valves/switches.

The tag label is to identify the number of the Isolation Certificate authorising the

isolation, or in the case where the isolation has been authorised through the use of Box7 of the Permit, the Permit Number.

Each valve/switch etc. used as part of more than one Isolation Boundary is to have atag label for each Isolation Certificate (or Permit.). It is not necessary to fit additionalphysical securing for each Isolation Certificate (except where this is required for electrical isolations by ESRs / ESOPs.)

7.7.3 Securing of Isolations

Mechanical

All valves, etc. used as part of an isolation boundary are to be secured in the requiredposition using a high visibility securing device, e.g. red/white plastic chain. The

purpose of securing the isolation is to prevent valves from being moved accidentally,and to show everyone in the area that the valve is being used as part of isolation.

Electrical

All electrical isolations are to be done in accordance with the ESRs and ESOPs.

7.7.4 Proving of Isolations

Whenever isolation is complete, the isolator must prove that the area within theisolation is fully isolated from pressure/electricity. This can normally be done bychecks at vent valves or by the checks to prove electrical equipment dead required byESRs/ESOPs.

If it is not possible to check that a pressure system has been de-pressurised withoutunbolting a flange, the work party must be made aware of the possible pressurehazard. The Job HSE Plan must include clear instructions on controlling the unboltingof the first flange to ensure that any pressure is released before bolts have beenremoved.

7.8 More than One Permit in an Isolation Boundary

If more than one Permit is to be worked on within the same isolation boundary, theisolation for each permit is to be recorded, authorised and labelled separately. This willminimise the risk of an isolation being removed before all work is complete.

7.9 De-Isolation on Completion of Work

When work is complete, the Permit Holder is to sign the Permit (Box 7) or the IsolationCertificate to request de-isolation. If testing is not required, the Permit Holder mustalso sign Box 11a of the Permit to confirm that the work is complete. If testing isnecessary before the Permit can be signed off, the procedure in 7.10 is to be followed.






Effective: Nov-08

The Area Authority or Appropriate Electrical Person shall:

• Check the Permit Location Board to ensure that the removal of the isolation

will not affect the isolation boundary for any other work.

• When satisfied that the work is complete and that it is safe to de-isolate, do the

de-isolation. If any of the valves/switches etc. are part of another isolationboundary, the tag for the current de-isolation is to be removed, but other tagsare to be left in place. The securing device must not be removed until allisolations on the valve/switch have been removed.

• When the isolation has been removed, compare the tags from the

valves/switches with those attached to the Permit/Isolation Certificate to ensurethe De-Isolation is complete. Then remove the marker and description of theisolation from the Permit Location Board.

• If part of the de-isolation is at a remote location under the control of another

Area Authority, fax a copy of the Isolation Certificate to that location and obtaina return fax with a signature that the remote de-isolation is complete.

•

Sign the Permit (Box 7) or Isolation Certificate to confirm that the de-isolationis complete.

7.10 De-Isolation for Testing

If testing is required to confirm that the work is complete, de-isolation is allowed beforethe Permit is signed in Box 11. In this case, the work description on the Permit mustinclude a test, and the Permit must be suspended before testing starts.

In addition the sheet on the reverse of the Mechanical Isolation Certificate, should becompleted each time an isolation or de-isolation for ‘Test’ is ‘put on’ or ‘taken off’

When the test is to start, the Area Authority is to de-isolate, using the procedure in 7.9,except that he is not to sign the Permit/Isolation Certificate until the test is complete

and the equipment is finally de-isolated. If a test shows that more work is needed, andthe equipment is to be re-isolated, the Permit is to be Re-Validated for the work to bedone.

CAUTION: This process is not to be used for Hydrostatic or Pneumatic Testing.

7.11 Transfer of Isolations between Permits

If a Permit reaches the end of its Validity Period and work is to continue under a newPermit, the Isolations can be transferred between the two Permits. Box 11b of the oldPermit is to be signed by the Area Authority to show that work is not complete.

If the isolation was authorised on a Mechanical Isolation Certificate or ElectricalImmobilisation Certificate, the number of the new Permit is to be written in the “Work

continuing on Permit No.” Box” on the Certificate. This transfer can only be done 3times. The Isolation Certificate number is to be written in Box 11b of the old Permit.The Isolation Certificate is then attached to the new Permit.

If the Isolation was authorised on in Box 7 of the Permit, the WHITE copy of the oldPermit is to be kept with the Permit Issue Point copy of the new Permit as a record of the isolation. Box 7 of the new Permit should be marked “See Permit ******** (PermitNo.)

7.12 Extended Period Isolations (EPIs)

7.12.1 Use of EPIs

EPIs are isolations which must remain although no work is being done within their boundary. They may be required for two main reasons:






Effective: Nov-08

a. Where work has started but will be suspended until the Validity Period of thePermit has passed. For example, when awaiting spares for a repair.

b. Where equipment becomes redundant and is to be permanently isolated.

7.12.2 Authorisation of EPIs

The procedure for authorising and documenting EPIs is as follows:

1. Any Permits for work related to the isolation are to be cancelled by the Area Authority.The Area Authority is to sign Box 11 of the Permit if the work is not complete,or is complete, writing in the Isolation Certificate number in the space after “Isolation retained under Cert. No.”

2. Where Box 7 of the Permit was used to record the original isolation, anIsolation Certificate must now be raised and its number written in Box 11 of thePermit.

3. Where no work is required, but equipment is to be isolated for an extendedperiod, an Isolation Certificate is to be raised to document the isolation

4. The Area Authority is to indicate in the EPI section of the Isolation Certificatethe reason for the isolation and the number of any Permit being signed off.

5. Both copies of the Isolation Certificate and the Isolation Tag Label halves areto be kept in the EPI section of the Permit Rack.






Effective: Nov-08

8 Permit Issue Points

8.1 Location and Use of Permit Issue Points

Permit Issue Point display equipment is to be provided at each location from which an Area Authority issues Permits. This equipment consists of a Permit Location andIsolation Board and a Permit Rack. The Area Authority is responsible for ensuring thatthe Permit and Isolation Displays are kept up to date to show the current work in the Area.

The Permit Issue Point is to be operated in accordance with the Permit ProcessingProcedure, which is available at each Issue Point, and is included in 6.19 of thismanual.

8.2 Purpose of Permit Issue Point Displays

The information available on the displays at the Permit Issue Points shows:

•

Current maintenance and engineering work in the area, so that conflictbetween activities can be avoided.

• Equipment which is isolated, and not available for operational use.

Isolation boundaries around equipment which is being worked on, which must be keptsecure to avoid damage to equipment and injury to personnel.

8.3 Permit and Isolation Display

The Display is made up of two main elements:

• The Permit Rack.

• The Permit Location Board and Isolation Display.

8.3.1 The Permit Rack

This is a rack into which Permits and Isolation Certificates can be placed. It is dividedinto vertical sections to separate Permits for different areas. These vertical sections aredivided horizontally to separate Permits at each different status, as follows:

a) Planned: Permits which have been Authorised, but have not yet beenValidated for work to start.

b) Validated: All Permits for which work is actually in progress or pre-validated.

c) Suspended: Permits for which work has started but is not currently inprogress and has yet to be finished.

d) Extended PeriodIsolations:

Permit has been Cancelled, but the Isolation is retained for a justified reason

8.3.2 Permit Location Board and Isolation Display

This is a large plan of a station showing all possible locations for work, together withoutlines of hazardous areas and major items of equipment. It also has boxes to indicatework in areas outside the station and on wells connected to the station. Wherever possible, the Board should be attached to the wall of the Issue Point so that theorientation of the Board and the plant are the same.






Effective: Nov-08

Permit Work and Isolations are marked up on this Board as follows:

Permit Work

The locations of the worksites are shown with coloured magnetic markers indicating theClass of the Permit.

RED - Class A PermitsBLUE - Class B Permits

Isolations

When equipment is isolated, a red coloured peg is to be inserted in the drawing of thatequipment on the Permit Location Board. A label hung from the peg will show thePermit/Isolation certificate number. Where there is more than one isolation onequipment, additional labels will be added. For well isolations, a red peg in the wellbox with the well number indicated will show which wells are isolated. If isolationbecomes an Extended Period Isolation, the red peg is to be replaced by a green one.

Markers are also provided to show where Fire and Gas Detection Systems areisolated / inhibited for maintenance work, and where there are Radiography and

Pressure Testing activities. The markers are shown in the 'PTW Materials SupplyCatalogue'.






Effective: Nov-08

9 Use of the Work Tracking System

The Work Tracking System is provided to track Authorised Permits to Work, andperforms an essential role in assisting the Responsible Supervisor in the co-ordinationof work his Area. It is not used on Drilling Locations.

9.1 Objectives of the Work Tracking System

The Work Tracking System has the following objectives:

• To provide an integrated daily schedule for all activities in an Area.

• To provide a planned Permit listing to assist in planning worksite examinations.

• To provide an up to date record of all Authorised Permits in an area.

• To allow the Responsible Supervisor to provide a listing of all Permits that may

be validated by individual Area Authorities on a particular day.

• To assist in identifying any possible conflicts between activities.

9.2 Operation of the Work Tracking System

The Work Tracking System is to be operated in all Responsible Supervisors' areas.The system is to be used as an element in the control and coordination of work, asfollows:

• The system is to be used by the scheduler to produce a daily plan for the Area

Co-ordinators daily meeting.

• All Permits are to be entered into the system at or before the time that they are

authorised by the Responsible Supervisor. The system will allow details of planned work to be downloaded into the Work Tracking system from SAP-PM

and the Engineering plan, minimising the need for typed input. Permits willshow the number of the Work Order, or Engineering Work pack, which willallow Permits to be linked to items on the daily schedule.

• Each afternoon the Responsible Supervisor will receive from Permit Applicants

lists of the Permits required to be worked on the next day. He is to examinethese lists, to ensure that no activities will conflict, and to ensure that thenumbers of Permits will be within the limits stated in 4.3.

• The Work Tracking listing is to then be updated to indicate all existing and new

Permits to be validated for the next day.

• Reports of Permits to be validated are to be printed and given or faxed to Area

Authorities by the Responsible Supervisor, at the start of each day.

• When a Permit is brought to an Area Authority for Validation, the Area

Authority is to check the Work Tracking Listing for the Area to ensure that thePermit has been included on the list for that day. If it is not on the list, he is tocontact the Responsible Supervisor to establish whether that Permit may bevalidated.

Detailed information on the operation of the Work Tracking System is contained in theWork Tracking System User Manual.






Effective: Nov-08

10 Permit to Work System Certificates

10.1 Certificates Provided

Certificates are used in the Permit to Work System to provide additional authorisationand control for a number of activities.

A PERMIT TO WORK SYSTEM CERTIFICATE IS NOT A “PERMIT TOWORK” AND MUST NOT BE USED TO AUTHORISE WORK UNLESS

IT IS ATTACHED TO AN APPROPRIATE PERMIT TO WORK.

The Certificates used in the system are:

• Mechanical Isolation

• Confined Space Entry

• Excavation (see Operations Excavation Certificate Procedure)

• Additional Gas Test Record

• Radiography

• Electrical Safety Documents:

- Electrical Isolation

- Electrical PTW - Safety Rules

- Limitation of Access - LOA

- Sanction for Test - SFT

- Clearance for Work under Overhead Lines - See Electrical SafetyOperations Procedures

Colours of Certificate copies:

• Worksite - Yellow

• Permit Issue Point - Green

10.2 Use of Certificates

10.2.1 Mechanical Isolation Certificate

This Certificate is shown in Appendix 3 the use of the Certificate in the isolationprocess is covered in 6.6. A brief description of its use is given below:

Application - Box 1

Box 1 is to be completed by the Permit Applicant, giving the details of the job and thecovering Permit number.

The Box marked ‘Work Continuing on Permit No’ is to be used when a Permit passesits expiry date, but work will continue under a new Permit allowing the IsolationCertificate to be transferred to a new Permit.






Effective: Nov-08

Reason for Isolation - Box 2

The Permit Applicant is to write here the reason why the isolation is required.

Details of Isolation - Box 3

The Responsible Supervisor is to write in Box 3 the details of all isolation points,

indicating whether valves are to be open or closed, and places where spading or disconnection is required.

Isolation - Box 4

The Responsible Supervisor shall sign Box 4 to authorise the Isolation. The Area Authority shall sign Box 4 when the Isolation is complete.

De-Isolation - Box 5

The Permit Holder shall sign Box 5 to request de-isolation. The Area Authority shallthen sign to authorise de-isolation. Once the de-isolation is complete, the person whodid the de-isolation shall sign this box to show that de-isolation is complete. He shouldalso complete the “De-Isolated position” box to show the “as left” status of the valves.

De-Isolation For Test – Reverse of Permit

On the reverse of the Mechanical Isolation Certificate is a sheet for use when De-isolation/Isolation For Test is required (see 7.10)

Extended Period Isolation (EPI) - Box 6

This box is to be used when isolation is still required after its associated Permit iscancelled.

The “EPI ON” Section is signed to authorise the EPI when a Permit is to be cancelled,with the Isolation remaining.

The “EPI OFF” Section is to be used when work can continue, and the IsolationCertificate is to be attached to a new Permit.

10.2.2 Confined Space Entry Certificate

The Confined Space Entry Certificate is shown in Appendix 4.

A Confined Space Entry Certificate is required whenever entry is made into vessels or other confined spaces where there may be:

• toxic or flammable gases or vapours, or

• Oxygen content of the atmosphere < 20% by volume.

A Confined Space Entry Certificate is valid for no more than 12 hours. If the worktakes longer than this, a new certificate is to be raised each 12 hours. The firstcertificate to be authorised by the Responsible Supervisor, but later ones can beauthorised by the Area Authority.

A brief description of the use of the Confined Space Entry Certificate is given below:

Application - Box 1

Box 1 is to be completed by the Permit Applicant, giving the details of the job and thecovering Permit number.

Safety Precautions Required - Box 2

This is a list of items to be checked by the Responsible Supervisor / Area Authoritybefore anyone enters the Confined Space. The Responsible Supervisor / Area Authority sign this box to indicate that all necessary precautions are in place.






Effective: Nov-08

Gas Testing - Box 3

Immediately before first entry to the Confined Space each day the Area Authority is totest the space for Toxic and Explosive Gases/Vapours and for Oxygen Concentration.The results of these tests are to be written in Box 3 of the Certificate.

Further testing during the day can be done by any Authorised Gas Tester.

Authorisation - Box 4

Once he is satisfied that the Confined Space is safe to enter, the ResponsibleSupervisor/Area Authority is to complete Box 4 to define the period for which theCertificate is valid, and then authorise the entry to proceed.

Copies of forms in the pad are not in the same sequence as other Certificates. The topcopy is Green and the second copy (worksite) is Yellow. The back of the Yellow copyhas boxes to record additional gas tests, and to record the entry and exit of personnelto and from the confined space.

10.2.2 Additional Gas Test Record

The Additional Gas Test Record is shown in Appendix 4 (reverse of Confined SpaceEntry).

This Certificate is to be used as a continuation sheet when Box 9 of a Permit, or theGas Test Record on a Confined Space Entry Certificate, is full.

10.2.3 Radiography Certificate

The Radiography Certificate is shown in Appendix 7.

A Radiography Certificate is required before an ionising radiation source can be usedfor Radiography. Procedures and definitions for handling radiographic sources arecontained in the HSE Manual.

•

Part A is to be completed by the Permit Applicant.• Part B is to be completed by a Radiation Protection Advisor or his Deputy.






Effective: Nov-08

11 Hazard Management

11.1 Objectives

The objectives of the Hazard Management System are to identify all the hazardsinvolved with a job and then to indicate controls that must be put in place to enable thework to be done safely. Hazard assessment is accomplished using the Job HSE Plan.

11.2 Job HSE Plan

The Job HSE Plan System shall be accessed electronically from the PDO Web.

The following Link will bring up the Web Page above Job HSE Plan. For 3rd PartyContractors who do not have access to the PDO Intranet the page can be accessedfrom 3rd Party Job HSE Plan System.

Clicking on Job HSE Plan System shall direct the user to the electronic system.



http://sww1.pdo.shell.om/dept/cd/csm/safety/

http://www.pdo.co.om/hseforcontractors/safety/




http://sww1.pdo.shell.om/dept/cd/csm/safety/





Effective: Nov-08

It is recommended that the Job HSE Plan be produced electronically using the aboveapplication. The process for producing the plan is as shown in Figure 11.1.

Figure 11.1 – Job HSE Plan Process

A Job HSE Plan shall be developed and printed for each activity being undertaken.The plan shall be printed and signed by the required signatories and attached to the

Permit.

Refer to Figure 11.2 for an Example Job HSE Plan developed from the electronicsystem.

If preferred, but not recommended the Job HSE Plan can be printed and completedmanually.

The same applies as to the electronic version; a separate plan is developed for eachactivity that is being undertaken.






Effective: Nov-08

Figure 11.2 – Job HSE Plan (Example)

IT IS ESSENTIAL THAT ALL JOB HSE PLANS ARE PROPERLY REVIEWEDBEFORE ANY WORK TAKES PLACE BY THE RESPONSIBLE

SUPERVISOR, AREA AUTHORITY AND WORKSITE SUPERVISOR, TOENSURE THAT THEY IDENTIFY ALL HAZARDS AND CONTAIN ALL

NECESSARY CONTROLS.






Effective: Nov-08

12 Training and Licensing Of Permit to Work Signatories

12.1 Training and Licensing of Personnel with PTW Roles

Before being trained in Permit to Work, Responsible Supervisors, Area Authorities, Permit Applicants, Permit Holders and Gas Testers should be given training in operational safety. Thistraining should include the mandatory courses stated in PDO document HEALTH, SAFETY AND ENVIRONMENT SPECIFICATION - HSE Training Specification SP1157 and theassociated pre-requisites together with those required by Contract Documents.

PTW System training and licensing requirements are shown in Table 12.1 below.Licensing after PTW training is important to ensure that Permit Signatories understandhow to apply the PTW system in their Area.

Table 12.1: PTW Training and Licensing Requirements

TRAINING LICENSING

POSTGas Testers

CoursePermit

SignatoriesCourse

PermitHoldersCourse

Licensed


Area Authority

Permit Applicant

(Optional)

Permit Holder

(Optional)

12.2 Gas Testers

Personnel who have completed Gas Tester Training (with valid Gas Tester card andrecord of training in the HSE Training Passport) are Authorised Gas Testers.

12.3 Training Course Assessment Tests

PTW training courses include formal assessment tests, to ensure that attendees haveachieved the required level of knowledge. Personnel must achieve a set mark in thesetests to pass the course.

12.4 Training Records

Personnel who pass a Permit to Work Training Course will have the course detailsrecorded in their HSE Training Passport. The Training Custodian will maintain a recordof all personnel trained.

12.5 Licensing Policy

After passing an appropriate PTW Course, everyone who authorises or superviseswork covered by Permit must be licensed by his line management. Licensing is toensure that everyone with a safety-critical role in the PTW System is competent for that role.






Effective: Nov-08

The Licensing process is to assess a candidate’s knowledge of Hazards andProcedures in his particular working environment. It is not intended to cover either Permit to Work System knowledge (which is assessed in the PTW Training Course) or Job Competence Assessment.

Licensing Process

Job Skill

Competence

PTWKnowledge

Work in Area

Competence

PTW

ApplicationKnowledge

Quality,

well managedPermits

Before Licensing

Figure 12.1 - Knowledge and Competence for Permit Activities

Figure 12.1 shows how a range of skills and knowledge need to be brought together toensure that Permits are well managed.

Referring to Figure 12.1:

Job Skill Competence

This is the technical skill of the person doing the work. Ensuring that people have thetechnical skills to do their work is the responsibility of PDO and Contractor linemanagement, and is not part of the PTW system.

PTW System Knowledge

This is an understanding of how the system works. This is assessed in the PTWtraining courses.

Work in Area Competence

This is an ability to understand, manage and react to the hazards present in the areawhere the work is to be done. For example, welding work in a station will have both the'occupational hazards' and the additional hazard of becoming an ignition source toother flammable materials in the area. A person involved in the Permit process mustrecognise and understand the additional risks. A person’s capability to deal with thisadditional risk is assessed during the licensing process.

PTW Application Knowledge

This is the ability to apply what was learnt on the PTW course to real worksiteactivities. This is the second issue tested in the Licensing process. The training courseintends to teach the mechanics of the system i.e. how the system itself works. What isrequired during licensing is a demonstration that people understand why a Permit isrequired, and how they would apply the requirements of the PTW system to the work.

12.6 Licensing of Permit to Work Signatories

12.6.1 Requirement for Licensing

Senior Line personnel are required to formally license people in the PTW roles of Responsible Supervisor, Area Authority, Permit Applicant and Permit Holder. It is






Effective: Nov-08

recommended that Assessment Teams of a minimum of 2 people from relevantdepartments in PDO are formed to assist the licensor in his role. Where jobcompetence assessment schemes are already in place and documented results of appropriate competence assessments may be used without separate individualassessments for licensing purposes. (See 12.7)

Before a licence is issued to an individual:

• He must have satisfactorily completed the appropriate PTW Course.

• He must have satisfied a licensor that he has the correct level of knowledge of

the Area and PTW System Application. This is done by questioning, asdescribed in 12.6.3 (or by previous competence assessment, as noted above.)

Questioning on Work in Area knowledge may take place before an individual attends aPTW Course, to ensure that he will be suitable for the intended role. PTW System Application knowledge would then be assessed after the course.

Licensing should be done by the personnel indicated in Table 12.2. Records of Licensing are to be held by the Departments carrying out the Licensing and the AreaHSE Advisor.

To assist conformity, it is suggested that the Licence Record Form shown in Figure12.2 should be used.

When an individual transfers to another PDO location, it is the responsibility of the newlocations senior line personnel to license the individual for that area. As an example, aPermit Holder who has successfully been through the licensing process in Fahud andapplies for a license in Yibal, only requires the endorsement of the Production Co-ordinator in Yibal and a new license card issued. It does not required the full licensepanel to convene.

If an individual has a “roving” role (e.g. Metering Specialist, NDT Specialist, Geomaticssurvey)) this should be identified on the license for the individual.

If an individual changes employer, this should not affect his license qualifications, or

require any further licensing. The individual should be able to offer his existing licensefor immediate replacement

There may be times when a project commissioning team requires regular access to anexisting Operations Asset. As an example, Harweel project may need access toMarmul wells for commissioning purposes. In this case, the Area Co-ordinator atMarmul may issue a Commissioning person with a letter of temporary appointment withstrict limitations, to act as an Area Authority for these agreed Marmul Assets only. The Area Co-ordinator would do this, having satisfied himself that the nominated personsare knowledgeable of the assets in question, and competent to sign appropriatepermitry.

It is also the responsibility of the area licensing panel to maintain a current register of all personnel licensed for that area.

12.6.2 Assessment Teams

It is strongly suggested that the Assessment Team involve at least 2 PDO personnel. –one of which is to be an HSE Advisor. The PDO personnel involved are to be familiar with:

• the work area of the candidate

• the particular hazards associated with the discipline

• PDO Operating and Emergency procedures applicable to the work area

The composition of the Assessment Teams is at the discretion of the Licensor. TheLicensor retains overall responsibility for the issuing of Licenses and maintainingLicense Records.






Effective: Nov-08

At least one of the Assessment Team members is to be the same level or higher thanthe candidate. As a minimum, one Assessment Team member is to have completedthe PTW Signatories Course in the last 3 years, and the remainder should have beenPTW signatories at some time previously

Table 12.2 suggests the personnel recommended to be involved in the Assessment

Teams for PTW Licensing.

Table 12.2 - Licensing Assessment Teams

AssessmentRole

LocationProduction

RepresentativeMaintenance

RepresentativeCandidate

Representative

Contract Holder Representative /

HSE Advisor

PTW Candidate


INTERIORProductionCoordinator

MaintenanceCoordinator

CandidateSupervisor

Head of Construction

Area Authority

PDO Permit Applicant

PDO PermitHolder

Contractor PermitHolder

Contractor Permit Applicant


MAF /TERMINAL

Senior TerminalOperationsSupervisor* +TerminalProduction

Supervisor /MarineSupervisor

HeadMaintenance and

Facilities Upgrade

CandidateSupervisor

InfrastructureHSE Advisor

Area Authority

PDO Permit Applicant

PDO Permit

Holder

Contractor PermitHolder

Contractor Permit Applicant

ResponsibleSupervisor &

Area Authority(Drilling)

PDO DrillingSupervisor*

HeadDevelopment /ExplorationDrilling

Well EngineeringHSE TeamLeader

* To establish licensing panel – issue, sign and maintain the cards records






Effective: Nov-08

12.6.3 Questioning of Candidates for Licensing

Personnel to be licensed are to be questioned to ensure that they are familiar with thehazards that may be encountered in their work areas, and the precautions necessary tocontrol them. Questioning should preferably be verbal, so that the licensor can have a

better understanding of an individual’s capabilities. It should include questioning on:

Work in Area Competence

To check their ability to understand, manage and react to the hazards present in thearea where the work is to be done.

PTW Application Knowledge

To check their ability to understand why a Permit is required, and how they would applythe requirements of the PTW system to their work. The Permit to Work Courses haveassessed knowledge of the way that the PTW process works, and this area does notneed to be repeated during this stage.

The candidate should be encouraged to use the PTW manual during the interview todemonstrate their navigation skills.

Questioning should cover the following topics:

Responsible Supervisors and Area Authorities

• The plant and equipment in their area, and the processes taking place in that

area.

• Co-ordination of work, including interactions between different Permit activities,

and between Permit and Operational activities.

• Potential hazards that may arise and the controls that they require.

• Relevant Operating Procedures, particularly those covering preparations for

maintenance.

• Emergency procedures.

Permit Applicants and Permit Holders

• Knowledge of the hazards associated with the technical content of the work

that they will be supervising.

• Knowledge of the potential hazards that may arise in the locations where they

will be working.

• Emergency procedures.

• Ability to communicate with their workforce in order to deliver Toolbox Talks.

12.7 Persons Assessed under an Approved Competence Scheme

Where persons have already been assessed for their role by an approved Competence Assurance scheme they may be licensed without formally repeating the assessmenttesting.

In order to maintain standards and auditability the following minimum requirementsapply to these persons:

• The scheme under which they have been assessed must be documented and

approved by the Area Team Leader.

• Written records of the assessment tests and the test results must exist.






Effective: Nov-08

• The assessment testing methods must demonstrate that the person has

acceptable knowledge of the key areas of responsibility defined in the PTWmanual.

License cards may then be issued to personnel who have passed the appropriatePermit to Work Training Course and who can demonstrate adequate knowledge of the

Area and PTW System Application. The person issuing the license should show on theback of the license card the limitations within which the licensee may work:

• Responsible Supervisors and Area Authorities are licensed for an Operational

Area.

• Permit Applicants and Permit Holders will normally be licensed for a type of

work. However, in areas with a specific hazard, Asset Managers may requirespecific licences to cover their area.

12.8 License Cards

The License Cards available for use in the PTW System are shown in the Fig 12.3 andthe PTW Catalogue. There are separate cards for each PTW Role.

For each person who has completed PTW Training successfully the Licensor will havethe following available:

• The candidate will have a stamped and signed HSE Training passport showing

which PTW course has been completed and the Licence Application /Notification from Training Administration of the successful completion of thePTW course, together with two passport photographs of each individual.

• Blank License cards will be available from the Area HSE Advisors.

Following completion and signing, the license cards are to be laminated in a plasticcover.

12.9 Re-Licensing

Personnel must attend the appropriate Permit to Work Training Course and be re-licensed by the Licesinf panel if:

• A person who has attended the Permit Signatory Course is required to become

an Area Authority, Permit Applicant or Responsible Supervisor.

• A person’s Line Manager believes that the individual would benefit from re-

training in order to become re-familiarised with the system.

There is no requirement for a person to be relicensed following attendance at arefresher course providing his work area and/or discipline have not changed.

12.10 Refresher Training

SP-1157- HSE Specification for HSE Training specifies that refresher training needs totake place at least every:

• 3 years for Permit to Work Licence Holders.

• 3 years for Permit to Work Licence Signatories

• 3 years for Permit to Work Licence Auditors.








Effective: Nov-08

PETROLEUM DEVELOPMENT OMAN

PERMIT TO WORK

LICENCE APPLICATION / NOTIFICATION

FAMILY OR TRIBAL NAME

1ST GIVEN NAME

2ND

GIVEN NAME

EMPLOYING COMPANY

COMPANY NUMBER

JOB TITLE

TRAINING PASSPORT NUMBER

TYPE OF PERMIT TO WORK COURSE ATTENDED *SIGNATORY or HOLDER

DATE PERMIT TO WORK COURSE ATTENDED

PTW INSTRUCTOR NAME SIG. DATE

AREA REQUIRED*(RESPONSIBLESUPVR & AREA

AUTHORITYONLY)

MARMUL FAHUD

NIMR LEKHWAIR

BAHJA YIBAL

MAF QARN ALAM

HARWEEL

TYPE OFWORKREQUIRED*

(APPLICANTOR HOLDERONLY)

MECHANICAL

ELECTRICAL

INSTRUMENT

CIVIL CONSTN.

PIPELINE OPS.

OTHER

HAS THE APPLICANT PREVIOUSLY BEEN FORMALLY LICENCED FOR A PERMIT TOWORK SYSTEM. IF YES GIVE DETAILS

FOR LICENCING PANEL USE ONLY

LICENCED AS* HOLDER APPLICANT AREA AUTHORITYRESPONSIBLE SUPVR

FOR AREA*MARMUL FAHUDNIMR LEKHWAIRBAHJA YIBALMAF QARN ALAMHARWEEL

TYPE OFWORK*

MECHANICAL

ELECTRICAL

INSTRUMENT

CIVIL CONTN.

WELL SERVICING

PIPELINE OPS.

OTHER

LICENSED BY

SIGNATURE

PDO REF. IND.

LICENCE NUMBER DATE OF ISSUE

COMPLETED FORM WITH ONE PHOTOWITH THE AREA HSE ADVISOR FORFILE

* DELETE ITEMS NOT APPLICABLETHE REVERSE OF THIS FORM SHOULDBE USED FOR ANY NOTES BY THELICENCING PANEL

2 PHOTOS(1 X LICENCE

1 X FILE)

Figure 12.2 - Licence Application / Notification






Effective: Nov-08

13 Permit To Work Monitoring, Auditing And System Review

13.1 Definitions

Monitoring of the system consists of regular checks by supervisors responsible for managing the operation of the Permit to Work System.

Auditing is a thorough examination of the way the system is operating. The PTW Audits are done to standard checklists, and must concentrate on examining evidencerelating to the items on the checklists.

System Review is an annual examination of the complete PTW System. It looks at Audit findings, proposals for change and other relevant information, to assess whatchanges are required to the system to optimise its effectiveness.

13.2 Objectives

Monitoring and Auditing of the PTW system is intended to:

• Check whether people are complying with the PTW system;

• Check whether the PTW system is meeting its objectives;

• Identify necessary improvements to the PTW System.

An annual System Review is necessary to:

• Review proposals for change to the PTW system and decide whether these

changes should be made.

• Review Audit findings and incident reports to decide whether they indicate a

need for improvements to the system.

13.3 Monitoring of the Permit to Work SystemWhen visiting Permit Issue Points and Worksheets as part of their normal duties,Managers and Supervisors should do spot checks of Permits, which do not need to berecorded. They should check the following:

• Are the Permit, Job HSE Plan and any PTW Certificates displayed at the

worksite

• Are these documents correct for the work and properly authorised?

• Are the precautions required by the Permit and Job HSE Plan adequate and

being complied with?

• Do the members of the work party understand the work, and the requirements

of the Permit






Effective: Nov-08

13.4 Auditing of the Permit to Work System

13.4.1 Responsibilities of Personnel Involved in the Audit Process

The key roles in the Audit process are the Auditor and the Audit Authority.The Auditor is the person responsible for leading the Audit.

The Audit Authority is the person to whom the Audit report is presented, and who isresponsible for corrective actions. The role of the Audit Authority is vital in ensuringthat corrective actions are allocated to individuals and completed.

Their responsibilities are:

The Auditor

Auditors are to have satisfactorily completed the Permit to Work Auditing Course(LXE046) during the previous 4 years to the audit, and have been involved in using or maintaining the Permit to Work System in the last 12 months.

Auditors are to prepare the Audit, conduct the Audit effectively and prepare an AuditReport, which sets out the findings in a concise and readable manner.

Auditors are not responsible for rectifying any problems found. This is the responsibilityof the Audit Authority and the Department(s) being audited.

Auditors are responsible for:

• Defining the Audit objectives and communicating them to people involved.

• Carrying out the Audit at the stated time, making sufficient time to do the Audit

properly, and Auditing in an alert and courteous manner.

• Concentrating on the objectives of the Audit, and not being side-tracked.

• Carrying out all the checks required by Audit documentation.

• Preparing a written Audit Report.

• Submitting the Report to the Audit Authority at the correct time.

The Audit Authority

The Audit Authority is to ensure that Audits take place in accordance with the AuditProgramme, and is to make time to analyse and action the results. The Audit Authorityis responsible for:

• Ensuring there is a published Audit Programme.

• Ensuring there are sufficient trained Auditors for the area.

•

Ensuring Audit Reports are analysed and actioned.• Ensuring actions are properly tracked and reviewed.






Effective: Nov-08

13.4.2 Types of Audit

Auditing of the PTW System is done at two separate levels. Table 13.1 defines the Audit Authority, Auditor and Audit Programming and Training Requirements for Level 1and 2 Audits.

Level 2 – 3-6 Monthly Audits

These audits look at the operation of the complete PTW system in an Area, includingthe performance of those who operate the system. The audit is likely to last 1-2 days.It may be done by auditor(s) from within the area, or by nominated auditors from other areas.

The Audit Authority is to issue a yearly programme stating when Level 1 audits shouldbe done, and who will be the Auditors. Level 1 Audits should be carried out between 2and 4 times per year in each Area. The Asset Manager for the Area is responsible for defining the audit frequency within these limits, depending on the level of Permitactivity in the Area.

The Audit is to include:

• Checks on the operation of the PTW System and the performance of the

personnel required by Audit Forms A -E.

• Any other checks on the system considered necessary by the auditor.

Table 13.1: Audit Structure

TYPE OF AUDIT

Level 23-6 Monthly

Level 1Annual

Audit Authority to whom Audit Report is Presented

Area Operations Team Leader UOP

Boundary within which Audit is Conducted

Area Company

Lead Auditor Operations Team Leader or AreaCo-ordinator

Qualified NominatedIndividual

Auditors Area Co-ordinator, EngineeringTeam Leader / Co-ordinator or Safety Advisor. QualifiedContractor representative

QualifiedNominatedIndividuals

Training of Auditors Each to have successfully completed the PTW Auditors Course

Publication of AuditProgramme

Audit Authority to produce annualprogramme

MSE/44 to schedule annualaudit

Presentation of Findings Report submitted within 1 week Report submitted within 2weeks

Review of Corrective Actions

Operations Team Leader UOP/7

Archivist Area Co-ordinator MSE/44






Effective: Nov-08

Level 1 - Annual Audits

These audits examine all aspects of the operation of the Permit to Work system. Theyare carried out to ensure that the Permit to Work is working effectively. The audit islikely to last 7 -10 days, depending on the size and complexity of the operation. It is tobe done by the Corporate HSE Department.

These Audits are to include:

• A check of the frequency, standard and results of Level 1 Audits.

• Audits of the system and personnel, using the standard audit forms, to provide

an independent view of whether system requirements are being complied with.

• Checks on whether the nominated Custodians for the various aspects of the

system are undertaking their stated responsibilities and whether thesearrangements are adequate.

• An examination of PTW Training.

• A review of whether the PTW documentation is accurate and adequate.

• A review of understanding of, and attitude to the system, by personneloperating it.

• Examination of arrangements for the appointment of signatories, and whether

satisfactory controls are in place.

• Examination of the arrangements for system review.

• Any other checks on the system considered necessary by the auditors.

Any of the standard audit forms may be used to assist in the audit.

13.4.3 Audit Organisation

Audit NumberingEach Level 2 Audit is to be given a 3-part reference number on the Audit forms,including:

• A site or department identifier.

• The last two digits of the year in which the Audit is done.

• A number from 1 upwards each year to identify the individual Audit.

These 3 parts are to be combined into a single identifier e.g. Fahud/98/03.

13.4.4 Conduct of the Audit

To provide a proper assessment of the operation of the PTW system, the Audit mustbe recognised as important by both Auditors and those being audited. Those who aresubject to Audit should show active participation by co-operating with the Auditor ingiving time to the Audit, when required. They should provide the Auditor with soundand reasoned responses to Audit questions.

In order to achieve this, the importance of Auditing is stressed during PTW trainingcourses. This importance should also be emphasised during Safety Meetings,particularly those where corrective actions are reviewed.






Effective: Nov-08

13.4.5 Audit Reporting

Audit Reports

• Reports on Level 1 audits should be submitted to the Audit Authority.

• The essential features of audit reports are that they should:

• Be brief, concentrating on significant finding of the audit.

• Separate non-compliances from observations.

• Recommend corrective actions and action parties.

• Be presented to the Audit Authority for approval of the recommended actions

and action parties.

• Be signed by the Audit Authority. It then becomes a formal statement of

actions required.

• Be distributed to all action parties and the Area Co-ordinator of the Audited

Area.

• The report should be distributed to:

• Audit Authority.

• Area Co-ordinator.

• Area Safety Supervisor.

• PTW System Custodian.

Corrective Action

In assessing whether an audit finding is a non-compliance, requiring corrective actionto be taken, auditors should bear in mind the definition of a non-compliance, which is:

“A deviation of unacceptable magnitude from the defined standard which, unlesscorrected, may lead to a break down of the system.”

Where auditors find isolated minor non-compliances, which are not repeated either bythe individual involved or in the area audited these should be pointed out to theindividuals involved, but they should not constitute non-compliance.

Non-compliances should be categorised under headings such as:

• PTW System Operation.

• PTW System Requirements.

• PTW System Documentation and Hardware.

• PTW Training.

• HSE Awareness.

• Competency.

• Motivation.

• Information and Communication.

• Management and Supervision.

• Management of Contractors.

The Audit Authority is to ensure that all corrective actions required by Audit Reports

have been properly actioned and are subject to regular monitoring.






Effective: Nov-08

13.4.6 Audit Archiving

Audits for each Audit Area are to be kept in an archive to ensure that:

• A record of corrective actions required is kept.

• Other Auditors can examine the records and ensure that Audits have beendone correctly and that corrective actions have been taken.

Archives are to be managed as follows:

• For each area, a post is to be nominated to maintain the Audit archive.

• The archive is to contain the Master Copy of all Audits for the Area.

• The Audit Report (Audit Form A), together with all supporting Audit forms and

documents collected during the Audit are to be archived.

• The Archive file should include a list of all Audits it contains.

• The Archive is to be kept in a secure location.

• Audit reports should be held in the Archive File for 12 months.

13.5 Review of the Permit to Work System

13.5.1 Frequency and Objectives

The PTW System Custodian is to arrange for the system to be reviewed on an annualbasis. The objective is to ensure that any changes required to the system, or itsoperation, are incorporated.

13.5.2 Review Mechanism

The PTW System Custodian should conduct the review in conjunction with appropriatepersonnel from areas operating the PTW System and other involved parties such asthe Training Custodian.

The review is to deliver recommendations for changes to the system, based onconsideration of the following:

• Audit Reports.

• Incident Reports.

• Proposals for Change.

• Changes to appropriate industry guidance documents.

• Changes to Company Organisation.

Copies of the recommendations from the review should be circulated for agreementprior to being implemented.

All resulting changes to the Manual or other documentation are to be done inaccordance with appropriate document control procedures.






Effective: Nov-08

13.6 Permit to Work System Audit Forms

The following audit forms are enclosed:

• Audit Form A -Compilation of Findings

• Audit Form B -Interview Area Co-ordinator

• Audit Form C -Interview Responsible Supervisor

• Audit Form D - Interview Area Authority

• Audit Form E-Interview Permit Applicant

• Audit Form F - Examine Worksite and Interview Permit Holder.






Effective: Nov-08






Effective: Nov-08

14 Change Management

14.1 Proposals for Change to the Permit to Work System

If you think that the Permit to Work System can be improved, fill in a copy of this formand send it through your Line Management to the PTW Custodian (UOP/7) Alternatively, you can send your proposal to UOP/7 by e-mail.

Table 14.1 Proposals for Change to the Permit to Work System

INSTALLATION/AREA:

CHANGE PROPOSED BY:

SIGNED:

POSITION:

DATE:

PROPOSAL FOR CHANGE:

REASON FOR CHANGE:

“COMMENTS/PROPOSAL FOR ACTION(LINE DEPARTMENT)

SIGNED:DATE

ACTION BY UOP/7

SIGNED: DATE






Effective: Nov-08

15 Details of PTW System Operation

15.1 Fault Finding

15.1.1 Fault Finding Work

Where checking is performed for the purposes of fault finding, so long as no work isinvolved that falls into an Activity requiring a Permit, the checks can be performedwithout a Permit as stipulated in the PTW Manual 3.6. Examples include such checksas examination of vibration switches which appear not to be functioning by knockingthe switch and observing any output. Should the checks indicate that further work isrequired which does require a Permit, such as opening a live electrical junction box,then this work must be done under a Permit.

Electrical Fault Finding

Fault finding on live electrical circuits requires a Class B Permit where the work is in aProcess Facility (i.e. not on an Asset that is under the Custodianship of the Electrical

Persons.) This work must be done in accordance with the ESRs, with a gas test whererequired by 3.6 of the PTW Manual.

Fault Finding - Rules

• The work must not include fault finding activities of a non-routine nature, or any

activities that may produce an unsafe situation. This includes all activitieslisted as requiring a Permit. In particular this means that a Permit will berequired if hydrocarbon lines are breached to remove valves, or if live (non-IS)electrical junction boxes in hazardous areas are to be opened.

• The work is to be supervised by the Area Authority, even where the work is

being done by personnel from another department.

• The Responsible Supervisor must advise the Area Authority of any potential

hazard, or effects on other parts of the process, particularly, where valveoperations are concerned.

• Once the fault has been found, a Permit should be raised to put it right, if the

type of work requires it.

15.2 Construction Work

15.2.1 Construction Work Close to Existing Facilities

Construction work, including the construction of new pipelines, within the Hydrocarbon Area surrounding an existing facility normally requires a Permit.

Some major construction programmes within the Hydrocarbon Area around existingfacilities may be controlled better by a job-specific HSE plan that addresses all thehazards and their controls than by the PTW System. The Responsible Supervisor maydecide that the PTW System need not normally be applied to this type of work, if hehas agreed the job-specific HSE Plan.

However Permits will be required for:

• Any work within a hazardous zone;

• Work (such as trenching or lifting) which could directly affect the facility;

• Work requiring a Class A Permit.






Effective: Nov-08

Further details of the precautions necessary when working on pipelines are containedin GU-501 Guidelines for Excavating and Working Around Live Pipelines .

15.2.2 Hook up, Un-Hook and Re-Hook of Wells

When new wells are hooked up, provided the closing spools are fabricated and weldedoff the site, then no Permit is required. Laying sleepers, connecting up spools,hydrostatic testing and providing the flowlines require a Class B Permit. Removal of spades at the Xmas tree and manifold for final handover to production, usingdocumented handover procedures also requires a Class B Permit.

The disconnection and re-hook up of existing wells requires a Class B Permit, unless itis necessary to cut flowlines. Cutting of flowlines requires a Class A Permit.

Engineering construction work for hooking up new wells may be multi-disciplinedinvolving electrical, instrument, civil and mechanical works. Where a single PermitHolder is licensed for all disciplines and the Job HSE Plan(s) adequately cover eachdiscipline's work, they may be authorised on a single Permit. It is important that thePermit Applicant and Responsible Supervisor discuss such plans in advance to agreethe number of Permits that will be applied to a specific well location. For example itmay be agreed to include all works on three separate Permits; one for civil, mechanicaland instrument work, a second for electrical work under a different Permit Holder and athird for Commissioning with a Commissioning Engineer as Permit Holder.

15.3 Seismic Work

Seismic crews generally operate in areas remote from existing facilities and are notsubject to the PTW System in such areas; however their area of coverage sometimesextends close to or in exceptional cases even through existing facilities. The followingnotes apply to Seismic operations close to or inside production and electrical facilit ies.

15.3.1 Overhead Line Clearance

The following rules apply to work close to live overhead lines:

• PR-1242 – Activities in the Vicinity of Overhead Power Lines gives required

Horizontal & Vertical Clearances (Typically, 3 m Horizontally and Vertically)

• Clearance Certificate is required which is authorised by the Asset Custodian.

• Passage by or under the overhead line requires an 'Overhead Line Clearance ',

which is not an Electrical Safety Document and so a Permit is not required.

• If Work is conducted under or near the Line a 'Limitation of Access' may be

required and supervision of the work by a Competent Electrical Person isrequired.

• If it is possible for machinery to come into contact with Overhead Lines, aPermit is required under Activity 9.1.

15.3.2 Hazardous Areas

Outside Process Facilities and Hydrocarbon Areas, Seismic Geophone use does notrequire a Permit.

In Process Facilities and Hydrocarbon Areas the use of Geophones requires a Class BPermit. This is Hot Work and a gas test will be required (on day of work) before workstarts and possibly at other times e.g. before energising system if later in day.










Effective: Nov-08

Seismic Operating Procedures, which clearly define limitations of access close to allfacilities (flowlines, pipelines, wells etc.) are acceptable as adequate control for vehicleaccess purposes when vehicles are outside Hazardous Areas (as defined in ERD 09-01) and not close to Overhead Lines (as defined in ESOP 20.)

15.3.3 Seismic Activities Which Require Permits

When a PTW is required for seismic activities, the requirements of the PTW SystemManual are to be followed.

When Overhead Line Clearance does require a Permit, the Responsible.Supervisor/Area Authority is the Electrical Custodian not Production Ops. Staff and theresponsibility for site supervision during any works are detailed in SP-1108 22 Electrical Safety Operating Procedures (ESOP-22 Live Line Working and Live LineWashing Practices.

Seismic activities in areas where Permits are required will normally be Class B work(See 3.6) Gas Testing may be done by an Authorised Gas Tester from the SeismicCrew. The Permit details will stipulate the required frequency of gas testing and theacceptance limits on specific gases within which work can be conducted.

Generally when the hazard is fixed and does not change in location or time (e.g. fixedelectrical lines) the site examination can be done once and at any time prior to workstarting. When the hazard is not fixed in location or time (e.g. possible hydrocarbonrelease) the precautions shall be applied immediately prior to, and if necessaryrepeated during, the work.

15.4 Geomatics Survey Work

15.4.1 General Survey Work

Survey crews are required to operate any where within the concession areas, but vast

majority of the work (> 95%) normally falls outside process facilities. In a basic term,the main tasks involved in this survey are mainly to determine the positions of naturaland man-made features and represent them in the form of maps and to demarcatepositions of intended features for development. The types of equipment used are either conventional optical instruments, the more modern electro-magnetic instruments or thelatest satellite based positioning system (GPS). Where electrical power is required torun the instrument, this is normally supplied by low voltage internal batteries e.g. 7.2vfor GPS and 4.8v for electro-magnetic equipment. Therefore these activities aregenerally not subject to the PTW system.

The main types of activities undertaken by Geomatics survey operations include thefollowing:

Geodetic surveys: - To establish reference control network by placing permanent

survey monuments or markers on the ground to be used for subsequent/future surveyworks. This covers extensive areas, ranging from a few kilometres to several hundredkilometres.

Topographic and engineering site surveys: - This involves a detailed survey of allfeatures within a pre-defined area of interest, including ground elevations at regular grid intervals to define its topography, usually for development purposes.

Route Surveys: - Similar to site surveys, but linear in extent. Mainly undertaken in newdevelopment areas for installation/construction of new pipelines, cables, roads or anyother linear facilities. However routes may run within 5-10m of existing pipeline/flowlineroutes when joining existing facilities. Route points are marked on the ground usingiron bars at suitable intervals (normally 500 m), and all features within a definedcorridor (normally 50m) are surveyed.

Drilling site survey supports: - First stage involves a preliminary investigation of thesite, including staking out of the proposed well location. After completion of site










Effective: Nov-08

construction a final survey of the cellar location plus other features within the site isconducted. The location can be in a remote, virgin area (especially explorationlocation) or within a congested producing field.

As-built surveys: - This covers the surveying of any new features after they have beeninstalled / laid on/in the ground so that their exact positions are known (and mapped)

for future reference.

15.4.2 Surveying Activities Which Require Permits

When a PTW is required for surveying activities, the requirements of the PTW SystemManual are to be followed. Survey activities in areas where Permits are required willnormally be Class B work (see 3.6).

15.5 Pipeline Work

15.5.1 Right of Way Certificate

Third Parties sometimes require access to PDO sites to do work for customers outsidePDO. For example, construction works for Government Departments that occurs withinthe Right Of Way (ROW) along PDO main Pipelines. In this situation, neither theGovernment Department, nor the Contractor performing the work, is working for PDO.PDO has, however, the right to check the work planned and to insist on precautions tobe taken to safeguard PDO's assets. This formal agreement from PDO is given in a NoObjections Certificate (NOC), which will be used together with a suitable cover sheetand the work plans, instead of a Permit.

The stipulations agreed to in the NOC will be sufficient to safeguard PDO's assets.

Further details of the precautions necessary when working on pipelines are containedin GU-501 Guidelines for Excavating and Working Around Live Pipelines .

15.5.2 Casasco Pit Entries

These do not require a Confined Space Entry Certificate to accompany the Class BPermit. Any Authorised Gas Tester may do the gas testing, with the results recorded onthe Permit.

15.6 Work In Operational Areas

15.6.1 Safety System Overrides

Overriding of Station Fire Detection2 system when undertaking welding in newconstruction areas is sometimes necessary to avoid a station trip caused by the “ultra

violet (UV)” radiation released during the welding operation. There are three separatecases depending on the location of the Work:

2 Refer to PR-1001c – Temporary Override of Safeguarding Systems for more details.










Effective: Nov-08

Work more than 50 m from a Process Facility

The work is being done more than 50m away from the Process Facility, so a Permit isnot required. A request for Safety System Override to be raised and the Operator willlog this in his Override Log. He will also use the Permit Location Board to indicate theSafety Overrides that he has put in place. He will use the square Safety Override

Marker together with a Red Isolation Pin and a label attached stating brief details of theOverride. It is essential that close liaison between the Operator and Work Party ismaintained to ensure work doesn't start before the Override is in place and that theOverride is removed as soon as work is completed.

Work within 50 m of an Operating Facility

In this case a Permit is required for work in a Hydrocarbon Area. The Permit shouldhave an Override request form attached to it. The station operator (Area Authority) willlog this in his Override Log and use the Permit Location Board to indicate the UVOverrides that he has put in place. He will only validate the Permit after he hasoverridden the UV System. When the Permit is suspended he will reinstate the UVSystem.

Permit Work on an Adjacent Facility

This case relates to a situation where two facilities although physically close, are under the control of separate Area Authorities, e.g. Fahud MLPS, Water Injection and NOCSPlants.

Work within one area requires a Permit Validated by the Area for the location of thework. The Permit should additionally state on the Override request form attached to it,the requirements for UV System overrides on the adjacent facility.

The Area Authority for the adjacent facility will sign the Permit in Box 5 as the Other Affected Custodian, log the overrides in his override Log and use the Permit LocationBoard to indicate the UV Overrides that he has put in place.

The Area Authority for the area where the work is being done, will only Validate thePermit when he has received confirmation that the overrides are in place.

When the Permit is suspended he will tell the other Area Authority to remove the UVSystem overrides.

15.6.2 Installation, Replacement and Optimisation of Beam Pumps

Installation of New Beam Pumps

This work can be done using a Class B Permit, provided the appropriate liftingprecautions are specified in the Job HSE Plan. The work involves the following:

1. Pressure testing, and tying in the flow line at the well end requires a Class BPermit.

2. Welding cable tray supports requires a Class B Permit (unless the well is in aProcess Facility, when a Class A Permit is required.) However if the electriccables are laid in a standard position, this could be done away from the sitebefore the pump is placed in position and would then not require a Permit.

3. The above activities can all be done on one Class B Permit, Activities 1.1, 6.7and 10.2.

4. The next job is tying in the flow line at the manifold end; this should be aseparate Class B Permit, Activity 6.1, which may be combined with Activity10.2 to complete the commissioning of the pump.






Effective: Nov-08

Replacement of Beam Pumps

Replacement of existing beam pumps after a well workover is to be Class B work, Activity 6.2

Beam Pump Optimisation Work

This work is to be Class B work, Activity 6.7.Flowline Leaks

Where the Area Authority and Responsible Supervisor classify the leak as minor, it isto be isolated and a Class B Permit Activity 6.7 raised for a clamping repair only. Nohot work of any sort is to be included in this type of clamped repair.

Beam Pump Stuffing Box Repairs

These are to be done under a Class B Permit Activity 6.7.

15.6.3 Well Cellar Entries

These require a Confined Space Entry Certificate to accompany the Class B Permit.

Any Authorised Gas Tester may do gas testing. A separate gas test is to be conductedat each entry and recorded on the Confined Space Entry Certificate or Additional GasTest Record sheet.

15.6.4 Replacement of Relief Valves

Although this is a routine job, it involves breaching a pressurised hydrocarbon system.It therefore requires a Class B Permit Activity 6.2. If the system remains live with norelief valve protection during maintenance, this is also Activity 5.1, which means that aClass A Permit is required if the work is in a Process Facility. The method of managingthis work is shown below:

Procedure for Controlling the Replacement of Relief Valves.

1. The planner in Fahud / Marmul who compiles the work pack of relief valves tobe changed in a particular station will also be the Permit Applicant for the work.He will visit the station to examine the worksites when compiling the work pack.It is not necessary to examine the site again when applying for the Permit.

2. A Class B Permit Activity 6.2 will be raised to cover all the relief valves in thework pack, each of which will be identified by tag number on the Permit. If thework is in a Process Facility, a separate Class A Permit Activities 5.1 and 6.2 isto be raised to cover any relief valves where the system remains live with norelief valve protection during maintenance. If required, a separate Permit for scaffolding will be raised (Activity 8.1)

3. The following precautions must be stated on the Job HSE Plan:

•

Only one relief valve to be removed at a time.• Area Authority to be in attendance when upstream flange on each

relief valve is broken.

4. For each relief valve a data sheet is raised which will give details of the relief valve and the isolation required to replace it. At the bottom of the sheet there isto be a table, which is signed by the Permit Holder and Area Authority, andrecords the stages of the operation i.e.

• Remove relief valve and blank flange or remove relief valve and

replace with new tested spare

• Remove blank and refit tested relief valve






Effective: Nov-08

To each of these sheets will be attached a Mechanical Isolation sheet. This willdetail the relief valve to be isolated but not the details of the isolation required.These will be inserted later by the Area Authority.

5. The Responsible Supervisor will decide with the Area Authority whether aseparate isolation certificate is required for each relief valve or whether a

number of relief valves can be safely changed under one isolation certificate.The Area Authority will then complete the Isolation certificates.

6. When Validating the Permit, the Area Authority will agree with the PermitHolder the order in which the relief valves are to be removed / replaced.

7. When the work starts, the Area Authority will do the first isolation, remain withthe work party until the upstream flange is broken (to confirm the system is de-pressurised) and then do the next isolation.

8. When work specified in 4 above has been completed, the Permit Holder is tosign the relief valve data sheet and then inform the Area Authority, who willinspect the work and countersign the data sheet.

On completion the work moves on to the next relief valve in the sequence and steps 7

and 8 are repeated for the next valve in sequence are repeated. The Area Authority willonly remove each isolation when he has signed when stages of 4 are complete on therelief valve data sheet.

The Permit will be cancelled when all the relief valves in the work pack have beenreplaced.

15.6.5 Tank and Vessel Entries

Where a number of tasks are to be done within a tank or vessel by the same workparty, it is not necessary to raise a separate Permit for each task (see 3.6 of the PTWManual.). A Class A Permit Activity 2.1 is to be raised for the entry, with the additional Activities on it (e.g. 6.3 and 6.6 for blasting and painting.) To ensure the correctprecautions are highlighted for each Activity, a combined Job HSE Plan is to be raised

covering all of the work within the tank or vessel.

If someone outside the work party requires access to the tank, they are to beconsidered part of the work party for the duration of the inspection. They are to workunder the control of the Permit Holder.

15.6.6 Use of Vacuum Tankers and Delivery Trucks

Vacuum Tanker Discharge of Hydrocarbons

Some Stations have a connection from the Oil-Saver Pit to a point external to thefence. The tanker discharges into an open funnel with a pit underneath the funnel andthe whole area is effectively a Zone 1 Area. A gas test needs to be performed beforethe vehicle enters the area with continuous gas monitoring during discharge. The workrequires a Class B Permit Activity 6.12. If a non-drip connection is used and the tanker remains outside the hazardous area then the work does not require a Permit.

Use of a Suction Tanker

If the vehicle enters an operating facility to empty a pit of hydrocarbons, a Class BPermit Activity 6.13 is required. If the tanker is collecting hazardouschemicals/substances then a Class B Permit, Activity 4.1 should be used.






Effective: Nov-08

Delivery of Liquid or Solid Stores by Vehicle to a Station

Vehicle entry to an operating facility normally requires a Class B Permit Activity 6.7.However, if the vehicle entry is only for the delivery of operational stores, and thevehicle is under the Area Authority's direction throughout, then the delivery does notnormally require a Permit or an Access Authorisation form. The following conditions

shall be met for a Permit not to be required:• The delivery of goods should be planned and known to the Area Authority.

• Offloading is in a safe, non-hazardous, area away from hydrocarbon and

electrical facilities.

• The Operator/Area Authority shall directly control the access and movement of

the vehicle.

15.6.7 Trenching Using Hand Tools and Power Tools

Excavation or Trenching using manual Hand Tools down to a depth of 300 mm doesnot normally require a Permit. The exception to this being in those Areas or Stations

where there are no documented details of buried services, in this case the excavationis to be treated similar to a mechanised excavation. Mechanised excavations are tofollow PDO Procedures for Excavation in Operational Areas and a Class B Permit Activity 12.1 is to be used for all excavations using mechanised or power tools.

15.6.8 Radiography

Radiography in non hydrocarbon areas by certified Radiographers does not require aPermit. Radiography in a Process Facility or Hydrocarbon Area requires a Class BPermit, Activity 4.2. In addition where radiography is to be carried out in a processarea, or close to process facilities, the safety systems and any nucleonic levelmeasurement should be inhibited through the approved route.

15.6.9 Instrumentation Work

Resetting of trips following a station trip comes under the heading of fault finding anddoes not require a Permit.

Installation of new equipment not tied into the existing safety/protection systems comesunder Activity 6.7, and requires a Class B Permit.

Work that interfaces with existing protection/safety systems e.g. remedial or modification work on existing systems or tie in of new systems requires a Permit Activity 5.1 for ESD and Fire & Gas systems, (Class A for Process Facilities, Class Bfor Hydrocarbon Areas). Activity 5.2 for Process Control and Machinery Control andSurveillance (Class B).

15.6.10 Maintenance of Diesel Engines in Remote Locations

Routine maintenance such as filter & oil changes and adjustments comes under theheading of routine plant checks and does not require a Permit.

15.6.11 15.6.11 Routine Strainer Cleaning

Although this involves unbolting joints on Hydrocarbon lines, it is a standardmaintenance job and the strainers are isolated, depressurised and drained before workstarts. Where the Station Operator is doing this, or is in attendance, it is a routinewatch keeping operation which does not require a Permit.






Effective: Nov-08

When it is being done by a contractor, unaccompanied by the Station Operator, andrequires vehicle access for the suction tanker to remove spillage, a Class B Permit Activity 6.7 will be required.

15.6.12 Changing of Filters (Air and Lube Oil)

Where the equipment is fitted with dual filters and has change over facilities betweenthe filters, the work of changing the "Off Line" filter is classed as an OperationalRoutine and does not require a Permit.

15.6.13 Plant Condition Monitoring and Integrity Checks

Routine checking of the Rotating Equipment Condition Monitoring systems involves theuse of a 'Micro-Log Data Collector' in Hazardous Areas. Pipeline wall thicknesschecking is also being performed with ultra sonic equipment in Hazardous Areas. Sincethese equipments are not certified for use in Hazardous Areas, their use falls under Activity 11.2 which means that Gas Testing precautions should be applied.

If the testing equipment is Certified for the Hazardous Area, then the work will not

require a Permit or any Gas Testing.

15.6.14 15.6.14 Air Conditioning Maintenance

Regular Air Conditioning maintenance in Production Stations involves cleaning outfilters and vacuuming out dust from the condenser units. This involves working withinthe control building and also using non-certified electrical equipment outside the controlroom within the plant fence. The maintenance staff isolates the system at the mainswitch and place a notice on the switch.

So long as the work is in a non-hazardous area then the work does not require aPermit. For hazardous areas, the work requires a Class B Permit, Activity 6.7. Whenpreparing the work the applicant should check with the Responsible Supervisor or Area

Authority to ensure that the location is indeed in a non-hazardous area. The use of the Access Authorisation form will ensure that this check is performed and the Area Authority will mark his Permit Location board to indicate the location of thesepersonnel.

15.6.15 Remote Site Working

Work at a remote site can be managed from a different Production Station from theone the system flows to. The Outside Work section of the Permit Location Board will beused to show this work e.g. Work to remove sand from a 'B-Station' Well cellar isrequired however, 'B-Station' is not open but 'C-Station' is open; the Permit cantherefore be issued from 'C-Station'. This situation only applies when the nature of thework does not directly affect the station process. When Permit work is to take place

inside the station, the station must be under the control of a fully licensed Area Authority based at the station.






Effective: Nov-08

15.6.16 Wireline and Well Services

Well services operations that are performed by a dedicated well services crew whooperate under approved procedures which include job safety controls do notnecessarily require a PDO Permit to Work. This Activity does not normally require a

Permit, if the well has been formally handed over to the Well Services crew via atransfer procedure (Well Location Custodianship Transfer Form.) This transfer mechanism, together with the responsibilities of the well service crew, should bedescribed in a written procedure and while the well is under transfer no work other thanwell services work should be done. It is the responsibility of the Well ServicesSupervisor to ensure all controls within the Job safety plan are in place and monitored.The well should be isolated by Operations, under a mechanical isolation certificate, andattached to the WLCTF. Any requirement to flow the well should be captured under ade-isolation for test (DFT)

15.6.17 Hand and Spray Painting

Process Plant

Painting of process plant requires a Class B Permit, as shown in Para 15.5.17.

Painting in Areas controlled by Electrical Departments

Painting in Areas controlled by Electrical Departments requires a Class B Permit asshown in Para 3.6.2.

Buildings

Painting of buildings located in process or electrical areas may involve working insideas well as outside a Facility fence. Inside the fence, the work will require a Class BPermit. Outside the fence, the work does not require a Permit.

15.7 Terminal Operations

15.7.1 Work on Offshore Single Buoy Moorings

Boat travel is a normal means of transport for the work party. The associated hazardsare a part of normal daily work and do not need to be controlled by the Permit to WorkSystem. Work on Single Buoy Moorings (SBMs) then falls into the following categories:

1. Work on Offshore SBMs which involves the opening of hydrocarbon systemsor the use of cranes e.g. change of hoses, chains or hawsers. Normally aClass B Permit with any isolation listed on the Permit, but Class A if hotworkis required to free shackles etc. Worksite examination only required if Class Awork is involved.

2. Routine non invasive maintenance work on offshore SBMs. No Permitrequired.

3. Other repair work. Use Permit appropriate to activity as shown in 3.6. Aworksite examination is only required if the Responsible Supervisor considersthat the risk warrants it.

15.7.2 Work on Marine Craft Afloat

1. Routine non invasive maintenance work on marine craft afloat. e.g. weeklyplanned maintenance checks. No Permit required.

2. Non-Routine repair or maintenance work on marine craft afloat. Use normalPTW activities as shown in 3.6, with worksite examinations as specified in 4.1.






Effective: Nov-08

15.7.3 Working Within The Terminal

Routine non invasive maintenance work that does not require any system override or affect the availability of any safety system. No Permit required.

1. Fault Finding. This is low hazard work to find the cause of a defect, but notnecessarily to repair it. No Permit is required if:

a. The work is done or supervised by a competent person;

b. The Responsible Supervisor has identified the hazards and given hisauthorisation, and;

c. The work required to repair the fault is minor and does not fall into aPTW activity and it may be completed under the initial authorisationwithout raising a Permit.

NOTE: An appropriate Permit shall be raised if the repair work is morecomplex and includes activities requiring a Permit.

2. Emergency Breakdown Work. The initial actions are similar to those for faultfinding i.e. make the plant safe and find the cause of the breakdown. These do

not require a Permit.Once the plant is in a safe state, the correct type of document for the repair willbe agreed between the Responsible Supervisor and the Area Authority and aPermit issued.

3. Multi Discipline work. If one trade is required to support another, the work canbe done on the same Permit, provided that the Permit Applicant and PermitHolder have been licensed to cover multi-discipline work.

15.8 Government Gas Operations

15.8.1 Work Inside Government Gas Terminals and Block Valve Areas

1. Changeout of Relief valves. This requires the relief valve to be isolated,removed and blanks fitted to the exposed flanges. Refer to 15.6.4. A Class BPermit is required (Activity 6.2) The Isolation can be documented using Box 7of the Permit.

2. Use of vehicle mounted cranes and hydraulic power plants. All GovernmentGas vehicles are fitted with flame arresters. A Gas Test is to be done beforethe vehicle enters the terminal. A Permit is not required for the vehicle,provided that the work to be done is controlled by an approved Permit or procedure.

3. Use of vehicle mounted crane to change out block valves. No Permit isrequired to control the potential ignition source of the vehicle, but a Class B

Activity 6.2 with Isolation Certificate will be required to change the block valve.4. Cleaning in line gas filters and routine minor maintenance work (e.g. opening

instrument junction boxes in non hazardous areas for calibration, or greasingand checking ball valves for leakage by opening body vents.). A Class BPermit (Activity 6.7) is to be raised, with Isolations recorded in Box 7 of thePermit. The isolations are to be secured and tagged as required by 7.7.

5. Entry into switchboard and battery rooms to reset the terminal alarm after atrip. An operator may do this work without a Permit, provided he is qualified as Appointed Electrical Person.

6. Control Valve overhauls - Multi Task Permits. For Control Valve overhauls, all3 disciplines are involved. A single Class B Permit (Activity 6.2) can be used,provided that a Permit Holder licensed for multi-discipline work is available.






Effective: Nov-08

The Permit Holder does not need to be as competent in the other disciplines ashe is in his own, but he must be able to check that all the requirements of theJob HSE Plan are being complied with.

15.8.2 Work on Gas Pipeline and Right of Way Areas

1. Work on the Right of Way between 10m and 25m of the pipeline. A Right of Way Certificate is required, but no Permit is required for this work. A NoObjection Certificate (NOC) is required to give formal authorisation tocontractors not working for PDO.

2. Work within 10m of the pipeline whether or not it touches the line. A Class A or B Permit is required, as required by 3.6. The location of work is a hydrocarbonarea. The work is to be authorised by GGO/2, with GGO/1 signing as Other Affected Custodian where required.

3. Hand excavation. Excavation to depths less than 300 mm does not require aPermit. A Right of Way Certificate is required.

4. Work within 15m of the pipeline that does not involve any of the activities that

require a Permit - e.g. Visual Inspections. No Permit is required.

15.8.3 Telephone Re-Validation of Permits

Telephone Re-validation is NOT allowed. If the Hazards involved in the work aresufficient that a Permit is required, then the full requirements of the PTW System mustapply.

15.9 Electrical Safety Rules and PTW Interfaces

15.9.1 Electrical Safety Documents

There are five Electrical Safety Documents:

1. Electrical Permit to Work - For HV work or LV with Circuit Main Earth (CME)

2. Sanction for Test - For HV work

3. Limitation of Access - For HV and LV work

4. Electrical Isolation / De-Isolation Certificate - For HV and LV work

5. Electrical Immobilisation Certificate - LV isolation for non Electrical work

Any work that requires an Electrical Safety Document (ESD) has the Electrical Hazardsadequately covered by the ESD, but it requires a Class A or B Permit (depending onthe nature of the work) when there is an interface with other work/operations. ThePermit ensures consideration of additional Hazards due to that interface.

15.9.2 Types of Electrical Work

Work in Electrical Areas of a Production Asset

This includes work in sub-stations, switchyards etc. located in Production assets. Thework is to be Authorised by the Area Electrical Supervisor (licensed as a ResponsibleSupervisor), agreed by the Production Responsible Supervisor as Other AffectedCustodian and Validated by the Electrical Area Authority.

Electrical Work on Electrical Assets controlled by Power Systems Operations

Authorised by the Infrastructure Electrical Supervisor (licensed as a ResponsibleSupervisor), no other Affected Custodian, Validated by Electrical Area Authority.

Non Electrical Work on Electrical Assets controlled by Power SystemsOperations






Effective: Nov-08

Authorised by the Infrastructure Electrical Supervisor (licensed as a ResponsibleSupervisor), no other Affected Custodian, Validated by Electrical Area Authority wherepossible, or by a Production Area Authority who is an Electrically Appointed person.

15.9.3 Work at Remote Electrical Assets Controlled by Power Systems Operations

Electrical work will have a suitably qualified electrical person in the work party, tovalidate the Permit.

Non-Electrical work - e.g. work on gas turbine prime mover, is covered by 8.2.3 above,except that if circumstances prevent the PDO Electrical Area Authority from Validatingthe Permit, a suitably qualified Production Area Authority from the local area could beused. This will require agreement from the Asset Teams, and a short familiarisationbriefing for the Area Authorities.

15.9.4 Live Line Washing

This normally requires only a Limitation of Access (LOA). However, if the live linespass through a Hazardous Zone (1 or 2), a Class B Permit will be required.

The Electrical Supervisor shall ensure that the Auto-Reclose facility is disabled.

15.9.5 Electrical Isolation (Low Voltage)

Controls for this work are covered in the Electrical Safety rules. An ElectricalIsolation / De-isolation certificate is to be issued by a responsible member of theCustodian department to a third party who is to carry out non-electrical work onapparatus which needs to be isolated before work commences.

15.10 Permits to Work for ESP Activities

This section of the PTW manual defines the requirements for the use of Permits to

Work on ESP, ESPCP & PCP Activities. The section defines a standard approachacross PDO on requirements for Vendor’s application of PTW system.

15.10.1 Pre-Requisites for ESP Activities

The following shall be in place:

• Contract Holder (CH) shall ensure the competency of Vendor Engineers,

including assurance that Vendor Engineer holds all necessary certificates.

• CSR shall ensure that all defined controls in HEMP exercise and all identified

controls in Job HSE plans are established and in place.

• CH shall establish and ensure that every activity has a procedure on how to

execute the activity safely.

• CSR together with Production Coordinator and ESP, ESPCP & PCP vendor

shall establish Job HSE Plans specific for every activity of ESP, ESPCP &PCP in their respective areas. The Online Job HSE Plan system should beused as baseline.

• The established Job HSE Plans shall be made available to CSR, Production

Coordinator/Supervisor and Vendor.

• The steps below shall be followed for all activities that require a Job HSE Plan:

1.Responsible Supervisor requests CSR to attend job.

2.CSR instructs Vendor Engineer to carry out the job. The means of communication could be by e.g. GSM, radio, etc. appropriate for






Effective: Nov-08

hazardous area. CSR instructs Vendor Engineer to refer to Job HSEPlan relevant to the activity and verify that all controls are in place.

3.Vendor Engineer informs CCR when the job is started and completed.

4.CCR Operator logs the work details in the “Station Log Book” including thestart and completion time and reports the status to the Responsible

Supervisor.

5.Vendor Engineer submits Job HSE Plans for all completed jobs to CSR for documentation and assurance on return to base.

15.10.2 Permit Requirements for ESP Activities

*Activities requiring PTWsystem:

Activities requiring only JobHSE plan:

Activities requiring AccessPermit:

Commissioning of ESP,ESPCP & PCP

Working on ESP, ESPCP &PCP panel/Troubleshooting

Data Collection includingdownload data from ESP byusing DH sensor

Fluid Shot Program software(adjustment to controller) if controller is inside the ESPPanel

Program software(adjustment to controller) if controller is outside ESPPanel

ESP etc powered byGenerator

Replacing pigtail at Wellhead(Isolated)

Assist to restart ESP, ESPCP& PCP after STN S/D. (In thiscase if vendor engineer is inremote area “Access Permit”can be obtained by anymeans of communication andsign off the “Access Permit”form on return for documentation andassurance)

Visual Inspection of ESPPanel

*(Note: The Electrical Supervisor to sign as affected custodian with direct liaising withESP-CSR and the Production supervisor to sign as Responsible Supervisor).

15.11 Permits To Work On Drilling Rigs

This Section of the PTW Manual defines the requirements for the use of Permits toWork on Drilling Rigs operating under contract to PDO.

15.11.1 PTW Systems on Contractor Operated Drilling Rigs

A Drilling Contractor may operate his own PTW System, if it has been formallyapproved by PDO. Before approval, the Contractor’s system should be examined byPDO to ensure it complies with the checklist contained in 15.11.5.

If a Contractor cannot meet the required standard, the PDO PTW System is to beoperated on the Rig. In this case, the requirements of this manual, except for Section 9(Work Tracking), shall apply. The PDO Drilling Supervisor is to act as the ResponsibleSupervisor and the Toolpusher as the Area Authority. If the PDO PTW System isbeing used, the list of activities requiring Permit in 15.11.2 below is to apply in additionto relevant activities from 3.6 of the PDO PTW Manual.

15.11.2 Activities requiring Permits on Contractor Operated Drilling Rigs

The activities listed require a Permit to Work on all drilling rigs working for PDO.






Effective: Nov-08

Maintenance

• Hot Work, except when done in the approved rig workshop.

• Isolation of rig safety systems.

• Work in those confined spaces where there is a risk from toxic fumes or

oxygen depletion.

• Major maintenance on mud pump.

• Non-routine maintenance in mast during normal operations.

• Maintenance / repair / painting from a personnel basket during any operations.

• Man-riding hoist operations.

• Scaffold erection on Rig or Camp site.

• Working on equipment which requires electrical isolation.

• Working on equipment which requires a secure mechanical isolation to

minimise the potential hazard.• Re-charging of Nitrogen Unit Bottles.

• Inspection of mast / standpipe / derrick / substructure fixtures and fittings

during normal operations.

• Killing well / major work on Xmas Tree while Rig rigging up / down.

• Grit blasting.

• Pressure cleaning of tubulars by subcontractor.

Pressure Testing

• Cement Unit pressure testing other than cement unit related Rig work.

• Any pressure tests not part of current rig work (e.g. Pre-test of BOP / test

manifold / choke manifold.)

• Flowline pressure testing.

• Installation of secondary Contractor’s equipment e.g. Solids control equipment,

filters or mixing machinery.

15.11.3 Activities Requiring Signature from PDO Drilling Supervisor when Contractor

PTW System is being Used.

When the Contractor’s PTW System is being used, the following activities require thePermit to be counter-signed by the PDO Drilling Supervisor:

• Hot Work, except when done in the approved rig workshop.

• Isolation of rig safety systems.

When required to counter-sign a Contractors Permit, the PDO Drilling Supervisor takesresponsibility for:

• Agreeing that the work should be done on the equipment involved at the

proposed time.

• Ensuring that all hazards have been identified.

• Reviewing the Job HSE Plan to ensure that it is correct for the work.

•

Deciding on necessary worksite preparations and safety precautions.The Toolpusher has all other responsibilities listed in the Contractor’s PTW System.






Effective: Nov-08

15.11.4 Work Done on or Near Drilling Rigs by Departments other than Drilling

Some work on the drilling location will be performed by or for departments other thanDrilling, e.g. welding and testing flowlines, digging pits etc. This work is to be coveredby a PDO Permit to Work. The requirements are as follows:

Work On the Drilling Location

• The Permit is to be raised by the appropriate Permit Applicant for the

personnel carrying out the work.

• The Permit is to be Authorised and Validated by the PDO Drilling Supervisor,

who will act as both the Responsible Supervisor and the Area Authority.

• The Permit need not be entered into a Work Tracking System (see Section 9)

Work Near the Drilling Location

Where the work is done outside the drilling location, but within 100 metres of the well,the following shall apply:

• The Permit is to be raised by the appropriate Permit Applicant for thepersonnel carrying out the work.

• The Permit is to be Authorised by a Responsible Supervisor, and Validated by

an Area Authority, from the PDO Asset Holder department for the area.

• The Drilling Supervisor is to sign the Permit as the Other Affected Custodian.

• The Permit is to be entered in the PDO Work Tracking System (see Section 9

of the PTW Manual).

15.11.5 Checklist for Contractor Permit to Work Systems

This Checklist contains a list of questions against which a Contractor's Permit to Work

System should be checked before authorising it for use.

If the answer to any of these questions is 'No', the Contractor should be required toamend his system.

PTW System

• Is there a procedure defining how the PTW System operates?

• Is there a list of work requiring Permit, which complies with the list in 3.6 of the

PTW Manual?

• Does the PTW system apply to the Company and all its sub-contractors?

PTW Procedure

• Does the procedure define who authorises Permits?

• Are personnel prevented from authorising themselves to work?

• Are records of all Authorised and Suspended Permits kept on the Rig site?

• Is a copy of the Permit displayed at the worksite?

• Is the Person to whom the Permit is Issued named on the Permit?

• Are hazards and precautions listed on the Permit or Job HSE Plan?

• Does the Permit require clear definition of the work to be done?

• Does the Permit state the specific location of the work?

• Are Permits signed by the person to whom they are issued?






Effective: Nov-08

• Is there a defined Validity period for a Permit?

• Does the procedure include checks to prevent conflicting activities from being

authorised?

• Is there a procedure for handover when the person in charge of the work

changes?• Are there documented isolation procedures?

• Does the procedure state what must be done when an unsafe condition occurs

or an alarm sounds?

• Is there a signature to confirm that work is complete, and that the worksite has

been left safe?

Training in PTW

• Are personnel trained in the operation of the system, to the standards required

by the E&P Forum Guidelines on Permit to Work Systems?

• Are personnel who authorise Permits themselves authorised?

• Is the competence of authorising personnel assessed?

• Is there a record of training and assessment?

• Are subcontractors included in the training requirement?






Effective: Nov-08

Appendix 1 – Class A Permit to Work






Effective: Nov-08






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Appendix 2 – Class B Permit to Work






Effective: Nov-08






Effective: Nov-08

Appendix 3 - Mechanical Isolation Certificate & De-Isolation for Test Record Sheet






Effective: Nov-08






Effective: Nov-08

Appendix 4 – Confined Space Entry, Additional Gas TestRecord, Record of Personnel Entry and Exit






Effective: Nov-08






Effective: Nov-08

Appendix 5 – Access Authorisation Form






Effective: Nov-08

Appendix 6 - Excavation Certificate






Effective: Nov-08

Appendix 7 – Radiography Certificate






Effective: Nov-08

Appendix 8 – Clearance Certificate for Work in the Vicinity or Passage Under O/H Lines






Effective: Nov-08

Appendix 9 - Definitions and Abbreviations

AGT Authorised Gas Tester

ALARP As Low As Reasonably Possible

CCR Central Control RoomCSR Company Site Representative

DTL Delivery Team Leader

EPI Extended Period Isolation

ESD Emergency Shutdown

ESOP Electrical Safety Operating Procedures

ESP Electric Submersible Pump

ESPCP Electric Submersible Pump Control Panel

ESR Electrical Safety Rule

F&G Fire and Gas

GPS Global Positioning System

HEMP Hazard and Effects Management Process

HSE Health Safety and Environment

HV High Voltage

JSP Job Safety Plan

LOA Limit of Access

LV Low Voltage

NDT Non Destructive testing

NOC No Objection Certificate

NORM Naturally Occurring Radiation Material

PCP Pump Control Panel

PTW Permit to Work