1. Well Integrity round table discussion Washington 2010 By Olav Inderberg and Jens-Henrik Neuenkirchen

2. Standards Overview Wellhead/XT: API spec’s ISO BOP ISO’s NORSOK’s API Spec’s API RP’s DNV-OS-E101 Casing Tubing, Downhole ISO - tubing API spec API ISO (cement) Drilling Equip. API spec’s API RP’s DNV-OS-E101 General PSA Norway ISO 13628-1 NORSOK D-001 NORSOK D-010 NORSOK U-001 OLF Guideline 070 DNV-OS-C101 Riser/Umbilicals ISO API RP’s API Spec’s DNV-OSS-302 DNV-OS-F201 DNV-RP-F206 Control Systems ISO API Spec 16D DNV-OS-E101 Uniform Safety Level ? Uniform system integrity requirements ?, Uniform design philosophy, common operational criteria ? Source: DNV

3. ISO 13628 Series Code Break 13628-5 13628-6 13628-4 13628-9 13628-8 13628-2 13628-10 13628-11 13628-12 13628-7 13628-1

4. E Tree Connector Wellhead Defining the challenge Global Riser Analysis Wellhead Analysis Loading on the system Operations Typical capacity curve Equipment Capacities

5. The understanding of well integrity and fatigue challenges are in relative early stages. The deeper we “dive” into these issues the more challenges are becoming apparent. Operations and materials are two important issues as well as better instrumentation to gain more knowledge. An understanding of the interdependence of the parts in the overall system and operations is vital to a safe management of these issues. THANK YOU FOR YOUR ATTENTION

6. Back up slides

7. Responsibilities Overall Responsibility Equipment capacities and fatigue performance Analysis of the different operations – Drilling – Completion – Intervention including TTRD and LWI Who sets operating limits and who set design requirements on a top system level. Description of interfaces between the different operations and phases.

8. Threaded connection fatigue in operational environment

9. “New” Operations like: Through tubing rotary drilling (TTRD) Does this require re-evaluation of equipment and operational procedures? TTRD technology in use on fixed platform Cost savings for subsea wells (low cost sidetrack).

10. Operational issues Escalating weather, bring riser to secure position: – Installation conditions – Normal operating conditions – Shut in conditions – Hang-off conditions Difference between intervention tools and permanently installed equipment