Asset Integrity Management – a risk based approach - Roy_van_Elteren.pdf · Asset Integrity Management – a risk based approach ... Pipeline Integrity Management Forum 2014 ...

DNV GL © 2013 SAFER, SMARTER, GREENERDNV GL © 2013

Asset Integrity Management – a risk based approachTurning Policy into operational practice

5th February 2014Pipeline Integrity Management Forum 2014

Roy van ElterenHead of Section Gas Infrastructure & Transport

DNV GL Oil & Gas

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Outline

� Introduction to DNV GL Oil & Gas;

� Asset Management Policy

� Operational practice

– threat Identification

– Risk prioritization

– Inspection planning

– Respond & process improvement

� Questions

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DNV GL Group

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DNVGL: A new company with 150 years of experience

DNV and GL Noble Denton joined forces in September 2013. We’ve drawn

upon our proud heritages to create:

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� Greater technical expertise

� Enhanced innovation capabilities

� Extended global reach

� An integrated service portfolio

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An integrated approach across the asset lifecycle

Our common way of working and global sales model delivers industry

best practice across the asset lifecycle. Core service areas include:

� Risk management advisory

� Technical advisory

� Noble Denton marine assurance &

advisory

� Technical assurance

� Certification and verification

� Inspection and quality assurance

� Offshore classification

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Serving the diverse needs of the entire oil & gas value chain

Exploration & Production

Transport &

DistributionDelivery &

Use

Enabling Operational Excellence

Verification & Certification Services

Technology Innovation Services

Energy Business Decision Support

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Asset Management Policy

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Asset Management Policy

� Challenges for Asset owners/pipeline Operators;

– Prolong lifetime of Assets in operation

– Public awareness

– Pressure from authorities

– Accidents v.s near misses

– Accommodate Renewables & Unconventionals?

– Compliance to new standards and regulation

� Operators are in the spotlight: “Show me you are in control”.

� Creating an “umbrella” for all the (inter)national- and company standards

– Example; PAS55/ISO55000

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ISO55000 : 2014Assets

PAS55/ISO55000 overview

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PAS55 : 2004Physical Infrastructure Assets

PAS55 : 2008Physical Assets

The IAM Tool

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PAS 55 Improvements with ISO 55000

� Worldwide recognition in comparison to U.K.

based PAS55

� Structure of Asset Management is better

acknowledging what large companies do and

want (ownership; asset management; service

provider)

� It puts emphasis on involvement of top

management and leadership

� Includes finance and accounting requirements

� Risk based decision has a prominent place in the

overall asset management system

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PC 251 Structure

ISO 550000

ISO 9001

quality

ISO 14001 environment

ISO 31000 risk

ISO 27000 inform.security

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Structured approach

Links to roles in the organization

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Operational areas

Asset Strategy

Asset Lifecycle Management

Asset Owner

Asset Manager

Service Provider

Performance indicators• Business performance

• Asset performance• Benchmarking

Decision support data• Probability, impact, risk• Cost data• Scenario’s, alternatives

High quality asset data• Fixed asset data• Condition / health• Assessment knowledge

BusinessStrategy

Asset Management Policy

Strategic Asset Management

Plan

Asset Management Plans

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Practical build up: from asset details to company criticality

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Networks

Facilities /Pipelines

Components

Parts

Criticality

Failure modes

Asset Health

Station configuration

Netwerkconfiguration

Maintenance/Performance

Data

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PAS55/ISO55000 in practice

� Benchmark of company procedures vs standards

� Establishing Asset Register

� Asset Condition Assessment

� Threat Identification

� Risk prioritization

� Selection of Inspection methods

� Maintenance planning/re-inspection

� Constructing Asset Management plans

� Risk evaluation cycle

� Integrity Management Systems software support

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Asset Integrity in Operation

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Risk based Asset Integrity in Operation

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Identify

Prioritize

Plan & Select

Respond

Improve

• Threats• Failure Mechanisms

• Risk Assessment• Prioritize risks

• Plan Inspections• Appropriate Methods

• Quality Management• Integration of Data

• Continuous improvement• Efficient processes

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Identify threats

� All threats to pipeline/asset integrity shall be considered

� Consider future changes in operating conditions that

may introduce new degradation mechanisms

(e.g. pressure fluctuations, gas quality)

� Guidance given by for example ASME B31.8S “Managing System

Integrity of Gas Pipelines”:

– Time-dependent (e.g. external corrosion, internal corrosion, stress corrosion

cracking)

– Stable (e.g. manufacturing, welding, equipment related defects)

– Time-independent (e.g. third party damage, incorrect operational procedure,

weather related and outside force)

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Identify

Prioritize

Plan & Select

Respond

Improve

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Inspection planning and selection

� Inspection methods can be divided mainly into inline

inspection (ILI) methods and aboveground surveys to be

used in assessment methodologies.

� About 40% of the gas pipelines worldwide cannot be

inspected inline.

� Assessment methods:

– External Corrosion Direct Assessment (ECDA)

– Dry Gas Internal Corrosion Direct Assessment (DG-ICDA)

– New developments in ILI technology

� Combining inspection results to increase accuracy of

defect growth prediction-> leading to effective

re-inspection

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Identify

Prioritize

Plan & Select

Respond

Improve

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Prioritize; risks

� Scope: Rank pipelines based on probability of

failure and failure mode for external corrosion

� Build a failure model to determine the failure frequency of a defect

based on the:

– leak vs. rupture (ASME B31G)

– Time to fail for a single defect

– Failure frequency of a defect (Monte Carlo simulation)

– Based on data from ILI-runs, the ECDA program, PIMS, international

databases and from expert judgment

� Leading to a ranking tool to prioritize inspections based on risk:

– Incorporate consequence factors (e.g. population density, environmental

damage, security of supply etc.)

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Identify

Prioritize

Plan & Select

Respond

Improve

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Respond; Inspect and repair

Identify

Prioritize

Plan & Select

Respond

Improve

External corrosion (MIC)

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Process Improvement; (P)IMS

� Scope: Development and Implementation of

a (Pipeline) Integrity Management System

� Our contributions: “Getting a company ready to use PIM software”

– Asset Management Policy development (Gap)

– Implementing company procedures

– Training company experts

– Functional specification customer requirements

– Integrity Management support (Risk, inspection)

� Supported by a unique Software package

� Data Quality & data management is key!

� First get Asset Integrity procedures in place.

Identify

Prioritize

Plan & Select

Respond

Improve

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DNV GL © 2013

SAFER, SMARTER, GREENER

www.dnvgl.com

Thank you for your attention!

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