life cycle approach for plant maintenance

8/13/2019 Life Cycle Approach for Plant Maintenance

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Page ‹#› Abu Dhabi Gas Development Company Ltd. CONFIDENTIAL

SOGAT 2012

The 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 ManagementSystem (HSEMS)





Introduction 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 outputsfrom HSEIA studies, management plans and procedures





How 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 barriersfrom 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


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How 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 forthe 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


Traditional ADNOC HSEIA Report Components

ADNOC HSE Impact

Assessment Report

Environmental

Impact StatementCOMAH 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 asregulator

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.


Element Project Initiation &

Control1

1.1

1.2




Element MAH & HSECES

Identification2

HEMP Studies

HAZID/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 RegistersStandard 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





Element HSE Critical

Positions & Tasks3

• HSE Critical Positions & Tasks identified

for all HSECES for the Drilling & Well

Testing Phase.

• Unique barrier referencing systemfacilitates efficient assurance activities

i.e., barrier verification audits.




Well & Well Test

Design Execution plans and assignment of competent resources

Design Inputs &

OutputsQuality plans, codes/specs/standards and HSE criteria

Design programs and calculation sheets

Well Design &

Development

Review

Integrated multi-discipline design reviews conducted

HSE Embedded

into ProcessSpecific safety studies and reviews in line with the HSE

plans

Design &

Development

Validation

Independent Verification Process for HSECES


Element Detailed Well & Well Test

Design & Engineering4

4.1

4.2

4.3

4.4

4.5




PurchaseInformation

HSECES Design Performance Standards Operating

Envelope Criteria

Verification of

Purchased ProductsHSECES inspection and test plans

Independent Verification Process for HSECES

Inspection and testing plans prior to operationInspection &

Testing

Verification of inspection reportsThird Party Inspection monitoring

Change Control procedures

Inspection &

Disposition Reports


Element Procurement,

Inspection & Testing5

5.1

5.2

5.3

5.4




Testing Well IntegrityDrilling logs.

Cement quality and casing integrity testing.

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

Quality plans

Identification procedures

Non-conformance procedures

Identification &

Traceability


Element Drilling Operations 6

6.1

6.2

6.3




Measurement Inspection, testing and examination against design

performance standards

Non-conformance Non-conformance control procedure

Non-conformance reports & follow up

Monthly quality reports

Independent Verification Body (IVB) compliancereports

Analysis


ElementQuality

Management7

7.1

7.2

7.3




Stimulation &Cleanout & Testing

Air Quality

Flaring ManagementDispersion Modeling

Real time data monitoring – model verification

Operation

Validation

Nitrogen purging of service linesPermit to work compliance

Well start up procedure

Endorsed well handover document

Handover

8.1

8.2

8.3

8.4

Defined Test Objectives – optimised well test programmeWell integrity assurance – standards verification

Wellsite HSE management plan (BAT & ALARP principles)

Management of change

Validation of testing contractors QA/QC via

ADNOC standards & audit

Competence assurance

Well Testing &

Handover8


Element

A Lif l A h t th HSEIA P





The 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 againstapproved 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

life cycle approach for plant maintenance

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