INTERNATIONAL STANDARD ISOTC67/SC4M 1 st edition 2010 5 - 8 Petroleum and natural gas industries — Well integrity for the operational phase.

Participating Work groups Well integrity management & handover –      Gary Limb (ConocoPhillips) Lead  –      Simon Spark ( Tullow Oil ) –     Nina Ringoen( Centrica ) –      Joe  Anders ( BP ) / Mike Payne BP > replaces Joe  Define well types & risk based monitoring –      Paul Hopmans ( Shell )  ( Iso standard  Convener )  –     Andre Luiz Rocha Alves Petrobras –      Gavin Mundie ( Centrica ) –      Crawford  Hair ( Chevron - Grant Lintern (Woodside) added Well barriers & annular pressure management –      Hilde Brandanger ( Statoil )  –      Alex Crabtree ( Hess ) lead –      Pier Alberto Magarini (Eni ) Well review & test criteria –      Nigel Snow ( Maersk )Lead –      Mike Murrey ( ExxonMobil ) –      Remco  Donders (Total)

Other participants ISO contacts 'edykhuis@ziggo.nl'; 'Ries.Langereis@c-a-m.com‘; Reeve, Neil TN GSNL-PTE/DTST; OGP focal point'Alf.Reidar.Johansen@ogp.org.uk'; Participating companies to review. Petro China Adco / Zadco Abu Dahbi; Petronas Malaysia Billiton Petroleum Development Oman Gazprom Qatar Petroleum

Referenced standards (So far ) API 14 A / B / D/ H API 6 A API 90 Norsok D 10 Iso 17776 Hazard identification Iso 14224 reliability and maintenance data for equipment ISO 31000 risk management

ISO standard content Scope / Definitions /References Well Integrity Management System Organizational Structure Competence Data Management Handover Assessment Well Integrity Assurance Process Performance indicators KpI’s Management of Change Barrier Principle Barrier Principle/Philosophy Barrier Definition (WBE/SCE) Barrier Schematics Barrier Performance Matrix Barrier Reliability/survivability (safety case) ESD/Related Safety Systems Risk management Risk factors and assessment Matrix Corrosion\ Erosion Management Conductor\Structural\Reservoir Compaction Risk Based Maintenance Process   Annulus Pressure Management Annuli Pressure Monitoring Process Definition/Calculation of MAASP/ MAWOP Sustained Pressure Management Integrity assurance Closed in/temporary suspended wells Acceptance criteria / Leak Rates Integrity Fault Mitigation Integrity Deviation/Waver Process Incident/ response planning   Lifecycle management. Well Review/ Health Check Process Life Cycle Extension Abandonment criteria for end of well life

Definition of Well integrity Well integrity process is: Application of technical , operational and organizational solutions to reduce risk of uncontrolled release of well bore fluids through out the life cycle of a well, to avoid harm to people , environment and assets and the required barriers and assurance task in place to prevent this . This well integrity standard addresses the operate phase of the well from well construct hand over to abandonment only.

Team 1 topics ( Gary ) Organisation R&R Information management Well hand over Well design basis Traceability of SCE materials People & competence Procedures Management of change KPI’s metric’s Assessment health check ( system)

Team 2 topics (Paul ) Risk matrix Performance standards Mitigation of faults Emergency response plan Deviation process Reliability process Condition monitoring all wells that are not abandoned Corrosion proposal Nigel Risk based monitoring , inspection & maintenance, flow wetted and non flow wetted components Reservoir compaction assurance task and risk

Team 3 topics (Alex) Barriers Barrier schematic’s matrix Safety systems / ESD ‘s Annular pressure management Methods of monitoring of annular pressure Risk acceptance criteria definition Acceptance criteria table Mitigating measures

Team 4 topics ( Nigel ) Well review process Well review scope Triggers for Well review Well review documentation process Technical health check End of well life review Valve testing & barrier verification Leak rates Block and bleed Barrier verification test Testing methods Function testing Interface seal testing Well head maintenance ( OEM spares definition ) Annular pressure test SCV testing

Timeline plan for development of ISOTC67/SC4M standard 1 st edition 2010 5 – 8 Well integrity for the operational phase I Note: 15 th afternoon after SPE start and continue in Grand Palace Noordwijk hotel, continue on Monday Tuesday in Rijswijk, details to follow.