Asset Integrity Management a risk based approach Turning Policy into operational practice

Transcription

1 Asset Integrity Management a risk based approach Turning Policy into operational practice 5 th February 2014 Pipeline Integrity Management Forum 2014 Roy van Elteren Head of Section Gas Infrastructure & Transport DNV GL Oil & Gas SAFER, SMARTER, GREENER

2 Outline Introductionto DNVGL Oil & Gas; Asset Management Policy Operational practice threat Identification Risk prioritization Inspection planning Respond & process improvement Questions 2

3 DNV GL Group 3

4 DNVGL: A new company with 150 years of experience DNV and GL Noble Denton joined forces in September We ve drawn upon our proud heritages to create: Greater technical expertise Enhanced innovation capabilities Extended global reach An integrated service portfolio 4

5 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 5

6 Serving the diverse needs of the entire oil & gas value chain Exploration & Production Transport & Distribution Enabling Operational Excellence Verification & Certification Services Technology Innovation Services Energy Business Decision Support Delivery & Use

7 Asset Management Policy 7

8 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/ISO

9 PAS55/ISO55000 overview PAS55 : 2004 Physical Infrastructure Assets The IAM Tool PAS55 : 2008 Physical Assets ISO55000 : 2014 Assets 9

10 PAS 55 Improvements with ISO Worldwide recognition in comparison to U.K. based PAS55 PC 251 Structure 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 ISO 9001 quality Includes finance and accounting requirements ISO inform. security ISO ISO environ ment Risk based decision has a prominent place in the overall asset management system ISO risk 10

11 Structured approach Links to roles in the organization Asset Owner Business Strategy Performance indicators Business Asset performance Management Asset performance Policy Benchmarking Asset Manager Asset Strategy Asset Lifecycle Management Decision Strategic support data Probability, impact, risk Cost Asset data Management Scenario s, alternatives Plan Service Provider Operational areas High quality asset data Fixed Asset asset Management data Condition / health Plans Assessment knowledge 11

12 Practical build up: from asset details to company criticality Netwerk configuration Station configuration Maintenance/ Performance Data Networks Facilities / Pipelines Components Parts Criticality Failure modes Asset Health 12

13 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 13

14 Asset Integrity in Operation 14

15 Risk based Asset Integrity in Operation Continuous improvement Efficient processes Identify Threats Failure Mechanisms Improve Prioritize Quality Management Integration of Data Risk Assessment Prioritize risks Respond Plan & Select Plan Inspections Appropriate Methods 15

16 Identify Identify threats Improve Prioritize 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) Respond 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) Plan & Select 16

17 Identify Inspection planning and selection Improve Prioritize Inspection methods can be divided mainly into inline inspection (ILI) methods and aboveground surveys to be used in assessment methodologies. Respond Plan & Select 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 17

18 Identify Prioritize; risks Improve Prioritize Scope: Rank pipelines based on probability of failure and failure mode for external corrosion Respond Plan & Select 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.) 18

19 Identify Respond; Inspect and repair Improve Prioritize External corrosion (MIC) Respond Plan & Select

20 Identify Process Improvement; (P)IMS Improve Prioritize 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) Respond Plan & Select Supported by a unique Software package Data Quality & data management is key! First get Asset Integrity procedures in place.

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22 Thank you for your attention! SAFER, SMARTER, GREENER 22