iwcf well control level 5 - celle drilling · pdf fileapi spec 6a/iso 10423:2009: ... july...

IWCF Well Control Level 5Celle Drilling Conference 2017

Contents

IWCF well control level 5 course program

Background - who is it for

Structure and contents

Delivery approach

Questions

Why?

Level 5 background and audience

Level 5 background

New training level recommended by

the International Association of Oil &

Gas Producers

Report 476 recommends

enhancements to well control training,

examination and certification

Level 5 background

Engineers and approving authorities training

Part of role specific training (level 1, 2, 3, 4 and 5)

Engineers, senior engineers, managers, team leaders, well examiners,

technical authorities

• Drilling, completion, well services

• Operations, design, petroleum, regulator

Level 5 background

Learning outcome

Capable of planning and performing safe well design and intervention

operations that maintain well control and integrity

Able to evaluate technically on deviations to the well operations plan

and advise accordingly

Level 5 objectives

Overall

Guarantee well

integrity over the

lifecycle

Design and maintain

well barriers for the

well lifecycle

Cross-discipline

Well planning

Drilling

Well intervention

Well abandonment

Consistent

Definitions

Standards

Procedures

Competence

requirements

Structure

Level 5 program structure and contents

Level 5 structure

Course structure and length

5 days / max 12 candidates

Pre-work and case study project

Drilling and well intervention participate together

Written assessment with invigilation

Level 5 content and delivery method

IWCF requirements

Information on recent well control or well integrity events

Case studies

Region-specific standards and regulatory requirements

Scenario exercises on full-scale simulator

If applicable, detailed course content is decided by the employer

together with the training provider

Minimum content according to IOGP 476, Appendix C

Maintenance and

failure of well

integrity

Management of

corrosive fluids

Formation strength

testing

Rock mechanics

Kick tolerance

Well barriers

Barrier verification

Annular cement

integrity

Inflow testing

Risk assessment

techniques

Risk management

Shallow gas

Tertiary well control

Well abandonment

Well integrity

management and

maintenance

Well integrity

deliverables lifecycle

phases

References

API Spec 6A/ISO 10423:2009:

Specification for Wellhead and Christmas

Tree Equipment

API Std 65-2: Isolating Potential Flow Zones

During Well Construction

API Spec 16A/ISO 13533:2001:

Specification for Drill-Through Equipment

API Spec 16C: Choke and Kill Equipment

API Spec 16D: Specification for Control

Systems for Drilling Well Control Equipment

and Control Systems for Diverter Equipment

Guidelines for the Abandonment of Wells

(Issue 5, July 2015)

API RP 59: Recommended Practice for Well

Control Operations

API RP 64: Recommended Practice for

Diverter Systems Equipment and Operations

API Std 53: Blowout Prevention Equipment

Systems for Drilling Wells

API RP 90: Annular Casing Pressure

Management for Offshore Wells

API RP 96: Deepwater Well Design and

Construction

API Bull 97: Well Construction Interface

Document Guidelines

ISO 31010 Risk management - Risk

assessment techniques

IADC Deepwater Well Control Guidelines

ISO 16530-1: Well integrity Life cycle

governance

Norsok D-010: Well integrity in drilling and

well operations

117 Recommended guidelines for Well

Integrity - NEW REVISION 08.06.2016

OP119: Well Life Cycle Integrity Guidelines,

Issue 3, March 2016

EU: Offshore Safety Directive 2013/30/EU

Oil & Gas UK:

Well Life Cycle Integrity Guidelines (Issue 3,

March 2016)

ISO 31000 Risk management

Maintenance and

failure of well

integrity

Management of

corrosive fluids

Formation strength

testing

Rock mechanics

Kick tolerance

Well barriers


Annular cement

integrity

Inflow testing

Risk assessment

techniques

Risk management

Shallow gas


Well abandonment

Well integrity

management and

maintenance

Well integrity


phases

Well integrity throughout the well lifecycle

Enhance knowledge and skills in planning and performing safe well design

and/or intervention operations to ensure well control and well integrity is

maintained throughout the well life cycle

Well integrity guidelines:

• Norsok: D-010 Well Integrity in drilling and well operations

• O&G UK: Well Life Cycle Integrity Guidelines

• EU: Offshore Safety Directive 2013/30/EU

• ISO 16530-1:2017 Well Integrity – Part 1: Life Cycle Governance

ISO 16530: well integrity

Minimum requirements to ensure management of well integrity

Assuring well integrity comprises two main building blocks: 1. Ensure well integrity during well design and construction2. Manage well integrity throughout the remaining well life thereafter

Addresses minimum compliance requirements for well operators

Developed by oil and gas operating companies

Practical recommendations and techniques

Well integrity management system

Operators implement a WIMS to ensure that well integrity is maintained

throughout the well life cycle

In the WIMS a combination of technical, operational and organizational

processes are applied

At the highest level, a well integrity policy shall be defined


WIMS should address

• Risk assessment

• Organizational structure

• Well barriers

• Performance standards

• Well barrier verification

• Reporting and documentation

• Management of change process

• Continuous improvement process

• Auditing


Basis of design phase

Design phaseConstruction

phaseOperational

phaseIntervention

phaseAbandonment

phase

WIMS elements are common to all phases

Lessons

learned

Optional workflow

Delivery

Insight into detailed contents and delivery approach

Maintenance and

failure of well

integrity

Management of

corrosive fluids

Formation strength

testing

Rock mechanics

Kick tolerance

Well barriers


Inflow testing

Annular cement

integrity

Risk assessment

techniques

Risk management

Shallow gas


Well abandonment

Well integrity

management and

maintenance

Well integrity


phases

Risk assessment

Delegates should be able to evaluate technically on deviations to the

well operations plan and advise accordingly

Example: during well execution, the casing got stuck 300m off bottom

can’t move up or down. Only option is to cement it in place.

Now what?

Risk assessment: management of change

The MOC process should include the following steps

a) Identify a requirement for change.

b) Identify the impact of the change and the key stakeholders involved. This includes identifying what standards, procedures, work practices, process systems, drawings, etc. would be impacted by the change.

c) Perform an appropriate level of risk assessment in accordance with the well operator risk assessment process. This includes:

— identifying the change in risk level(s) via use of a risk assessment matrix or other means;

— identifying additional preventive and mitigating measures that can be applied to reduce the risk level;

— identifying the residual risk of implementing the change/deviation;— reviewing the residual risk level against the well operator’s risk tolerability/ALARP acceptance criteria;

— updating the risk register accordingly.

d) Submit the MOC proposal for review and approval in accordance with the well operator’s MOC system.

Maintenance and

failure of well

integrity

Management of

corrosive fluids

Formation strength

testing

Rock mechanics

Kick tolerance

Well barriers


Annular cement

integrity

Inflow testing

Risk assessment

techniques

Risk management

Shallow gas


Well abandonment

Well integrity

management and

maintenance

Well integrity


phases

Annular cement integrity

Objective of cementing operations is to successfully seal the annulus with

cement

Many wells suffer from sustained casing pressure or other well integrity

issues related to non-successful cementing operations

API Standard 65 part 2 and API RP 10 series

Annular cement integrity

Isolating potential flow zones in wells during well construction

Effective fluid displacement

Loss of hydrostatic pressure when cement sets

Practices and factors that affect cementing success

Maintenance and

failure of well

integrity

Management of

corrosive fluids

Formation strength

testing

Rock mechanics

Kick tolerance

Well barriers


Annular cement

integrity

Inflow testing

Risk assessment

techniques

Risk management

Shallow gas


Well abandonment

Well integrity

management and

maintenance

Well integrity


phases

Maintenance and

failure of well

integrity

Management of

corrosive fluids

Formation strength

testing

Rock mechanics

Kick tolerance

Well barriers


Inflow testing

Annular cement

integrity

Risk assessment

techniques

Risk management

Shallow gas


Well abandonment

Well integrity

management and

maintenance

Well integrity


phases

Inflow testing

Incomprehension about inflow testing

Incorrect usage of horner plots

Incorrect interpretation of horner plots (too quick)

No official standard

Are supervisors on the rig trained

Supervisory personnel on the rig who have to make decisions are often

not trained to make those

0

0.5

1

1.5

2

2.5

3

Flo

w r

ate

(ltr/

min

)

Time (minutes)

INFLOW TEST

Return flowisreducingduetocoldfluidheatingup

Isthisstillfluidheatinguporabarrierleak?

Summary

IWCF Well Control Level 5 Training

Guarantee well integrity over the lifecycle

Design and maintain well barriers for the well lifecycle

Plan and perform safe well design and intervention operations

Evaluate and act technically on deviations to the plan

The endany questions?

iwcf well control level 5 - celle drilling · pdf fileapi spec 6a/iso 10423:2009: ... july...

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