sogat 2012

Abu Dhabi Gas Development Company Ltd. CONFIDENTIAL Page 1

SOGAT 2012The Shah Gas Development Project

A Lifecycle Approach to the HSEIA Process


HSE Impact Assessment What is an HSEIA & Its Importance

• An HSEIA is systematic approach to evaluating the potential effect of a project on health, safety and the environment

• A living document that considers the full lifecycle of the project (FEED, EPC, Operations, Decommissioning & Abandonment)

• ADNOC Requires HSEIAs to be undertaken for all project phases

• Key function is to identify, assess, mitigate to ALARP and monitor on a continuous basis all material risk that can adversely impact health, safety, and environment

• Residual impacts and hazards managed by the operator’s HSE Management System (HSEMS)


A Lifecycle Approach to the HSEIA ProcessIntroduction to the Approach

• A streamlined, risk-based and quality-focused methodology based on current industry best practice for HSE Case development

• A systematic and gated verification and review process that provides for the management of major accident hazards through the lifecycle of the Shah Gas Development (SGD) Programme

• Greater emphasis is placed on HSE Critical Equipment and Systems (HSECES) integrity that provides significant safety and efficiency benefits to the end user

• Developed in close cooperation with the ADNOC EHS Division

• Demonstrates the safe systems of work and organisation required to effectively identify, manage and maintain risks to a tolerable and As Low As Reasonably Practicable (ALARP) level

• Based on the detailed assessment of the proposed SGD activities and the outputs from HSEIA studies, management plans and procedures


A Lifecycle Approach to the HSEIA ProcessHow it is Different from Traditional HSEIA Approaches

The Al Hosn Gas HSEIA approach is a departure from traditional HSEIAs process in the following ways:

• Process based method compared to the traditional prescriptive methodology of HSEIA report development

• Is overarching and not limited to providing a ‘snap-shot’ in time of HSE risk i.e. lifecycle philosophy

• Systematic and gated verification and review process provide tangible barriers from allowing the development to proceed to the next stage until a strategy to manage HSE risks to ALARP can be put in place

• Reduces unnecessary duplication of HSE studies/reviews; and

• Reduces the turnaround time for obtaining approvals from ADNOC EHS Division.

• Inter-linkages between quality management and procurement thus effectively integrating supply chain logistics in the lifecycle and improving operational efficiency


A Lifecycle Approach to the HSEIA ProcessHow it is Different from Traditional HSEIA Approaches

The following slides contain diagrams and process flows for the following:

1. ADNOC HSEIA report process (slide 6)

2. Overview of the Al Hosn Gas lifecycle HSEIA approach developed for the Phase II SGD Programme – well operations and well testing (slide 7)

3. The 8 step elements of the Al Hosn Gas lifecycle HSEIA approach developed for the Phase II SGD Programme – well operations and well testing (slides 8 – 15)


• Identify and assess material Risk• Mitigate risk to ALARP• Provide control measures and monitoring

A Lifecycle Approach to the HSEIA Process Traditional ADNOC HSEIA Report Components

ADNOC HSE Impact Assessment Report

Environmental Impact Statement

COMAH Report OHRA Report

Hazard & Effects Register For Risk categories:

People, Environment, Assets & Reputation

Manage medium/low risk through Operator’s HSE Management System

ADNOC and SPC as

regulator require HSEIA

for O&G Projects


Drilling Operations

Procurement, Inspection &

Testing

Well Testing & Handover

HSE Critical Positions &

Tasks

Quality Management

Detailed Well & Well Test Design

& Engineering

Project Initiation &

Control

MAH & HSECES Identification

1

2

3

4 5

6

7

8

Al Hosn Gas Lifecycle HSEIA Approach SGD Phase II – Drilling, Well Testing & Cleanup Phase

Evergreen Process

Gates Review

Gates Review

Gates Review


Change Control in Design

Robust Change Control procedures in place for review, approval & documentation of design changes. Change Management supported by an integrated (Company/Contractor) multi-discipline technical authority community (approved terms of reference)

Baseline Documentation

Design Codes, Standards and Guidelines established by Drilling Development Division for the Drilling Contractors.

SGD Phase II – Drilling, Well Testing & Cleanup Phase Element Project Initiation &

Control1

1.1

1.2


SGD Phase II – Drilling, Well Testing & Cleanup Phase Element MAH & HSECES

Identification 2

HEMP StudiesHAZID/ENVID/OHRA etc., to identify Major Accident Hazards (MAHs) & Initial identification of HSECES. ISO17776 Standard for Hazard Reference Codes with additional hazards identified for Al Hosn Gas

Risk Registers Standard Hazards, Effects & Aspects Register format used by Company and Contractors

Bowtie Analysis

Developed via multi-discipline technical authority community workshops using BowTieXP. Company Bowtie Analysis Standard establishes unique hazard and barrier referencing system that will carry through from design to operations bowties

HSECES Identification

HSECES are identified and confirmed by discipline technical authorities during bowtie analysis workshops.Controlled HSECES Register

2.1

2.2

2.3

2.4


SGD Phase II – Drilling, Well Testing & Cleanup Phase Element HSE Critical

Positions & Tasks3

• HSE Critical Positions & Tasks identified for all HSECES for the Drilling & Well Testing Phase.

• Unique barrier referencing system facilitates efficient assurance activities i.e., barrier verification audits.


Well & Well Test Design Execution plans and assignment of competent resources

Design Inputs & Outputs

Quality plans, codes/specs/standards and HSE criteriaDesign programs and calculation sheets

Well Design & Development

ReviewIntegrated multi-discipline design reviews conducted

HSE Embedded into Process

Specific safety studies and reviews in line with the HSE plans

Design & Development

ValidationIndependent Verification Process for HSECES

SGD Phase II – Drilling, Well Testing & Cleanup Phase Element

Detailed Well & Well Test Design & Engineering

4

4.1

4.2

4.3

4.4

4.5


Purchase Information

HSECES Design Performance Standards Operating Envelope Criteria

Verification of Purchased Products HSECES inspection and test plans

Independent Verification Process for HSECES

Inspection and testing plans prior to operationInspection & Testing

Verification of inspection reportsThird Party Inspection monitoringChange Control procedures

Inspection & Disposition Reports

SGD Phase II – Drilling, Well Testing & Cleanup Phase Element Procurement,

Inspection & Testing5

5.1

5.2

5.3

5.4


Testing Well Integrity Drilling logs.Cement quality and casing integrity testing.

Validation Processes Pre-mobilization audits of HSECES.Technical audits to check critical equipment.

Quality plansIdentification proceduresNon-conformance procedures

Identification & Traceability

SGD Phase II – Drilling, Well Testing & Cleanup Phase Element Drilling Operations6

6.1

6.2

6.3


Measurement Inspection, testing and examination against design performance standards

Non-conformance Non-conformance control procedureNon-conformance reports & follow up

Monthly quality reportsIndependent Verification Body (IVB) compliance reports

Analysis

SGD Phase II – Drilling, Well Testing & Cleanup Phase Element Quality

Management7

7.1

7.2

7.3


Stimulation & Cleanout & Testing

Air QualityFlaring Management Dispersion Modeling

Real time data monitoring – model verification

Operation Validation

Nitrogen purging of service linesPermit to work complianceWell start up procedureEndorsed well handover document

Handover

8.1

8.2

8.3

8.4

Defined Test Objectives – optimised well test programmeWell integrity assurance – standards verificationWellsite HSE management plan (BAT & ALARP principles)Management of change

Validation of testing contractors QA/QC via ADNOC standards & auditCompetence assurance

Well Testing & Handover8

SGD Phase II – Drilling, Well Testing & Cleanup Phase Element


A Lifecycle Approach to the HSEIA ProcessThe Benefits

• The HSEIA approach provides tangible performance enhancement benefits in the following ways:

• A greater focus on MAHs and HSECES integrity thus significantly reducing the overall risk picture;

• Greater flexibility for managing HSEIA process associated with multi-package/multi-rig operations thus providing optimum efficiency

• Minimizing overall lifecycle costs through procurement of HSECES against approved performance standards i.e., QA/QC of HSECES from day one

• Reduction of turnaround in ADNOC/SPC approval process i.e., SGD Program HSEIA Phase II approvals have been achieved approximately 14 days from submittal

• The approach is fully integrated with ADNOC & COMPANY HSEMS

• The iterative and evergreen nature of the approach provides the opportunity for continuous improvement

sogat 2012

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