API RP 6HP (draft 5.2) Status Presentation Tech Session II Summer Standards Conference

1. API RP 6HP (draft 5.2) Status Presentation Tech Session II Summer Standards Conference

2. Design Verification Analysis Limit Load Analysis Fracture Mechanics Analysis Design meets strength requirements Design meets Fatigue life requirements No No Redesign Redesign Yes Design meets Mfg functional requirements No Redesign Design Validation Testing DESIGN VERIFICATION ANALYSIS

3. API RP 6HP KEY ISSUES • User’s Functional Specification • Definition of all internal and external load, cyclic load, and environmental requirements • Pressure, tension, bending, temperature(s) • Cyclic load requirements • Environmental fluid requirements • Manufacturer’s Design Verification Analysis • Thorough design analysis appropriate to typical failure modes of HPHT equipment considering all load and environmental requirements • Limit load / shakedown analysis and fracture mechanics fatigue analysis • Material Data • Need material performance data appropriate to the service environment requirements • Toughness, fatigue crack growth(s)

4. JAN 2007 ECS MEETING • Action Item for RP 6HP Committee • The work of the Materials Task Group should continue in order to develop the testing protocols needed for the materials pilot testing. The work on revision 5 of RP 6HP should continue in addressing the comments received to date, but revision 6 should not be circulated for comments in order to reduce the resource burden on reviewers, with work continuing only after the pilot materials testing has been successfully completed. Presented at 2007 Summer Conference

5. ECS Action Item for RP 6HP2007 Winter Conference Action Item Summarized as Follows: • Example Application For Process Clarity • Finish 5th Revision Comments • Hold Until Example Complete & Action Taken Presented at 2007 Summer Conference

6. Example Application for Clarity • Example Application • Identify Example Component for Analysis • Perform 6HP & 6A Analysis Comparison • Identify Data Required to Materials Group • Materials Group to Specify Material Test Protocols • Perform Material Testing Using Protocols • Adjust Analysis Assumptions • Write Technical Report Presented at 2007 Summer Conference

7. Example Analysis Status FEA Work Complete Results Are Summarized for Presentation Detail Report is in Progress Committee Comments Being Incorporated in Report Anticipate Completion July 2008

8. Example Analysis Summary • The Analysis Used the RP 6HP Methodology • Some of the Re-Write of ASME Sec VIII Div 2 Was Used • These Issues Will be Incorporated in Next Revision • The F22 Material Properties From the MMS Project Were Used • Report Accessible on MMS Website • Available for Industry Reference • Analysis Results Have been Presented Twice to the 6HP Committee • Received Good Comments • Identified Where More Effort is Required to Explain Process • Some Areas Were Considered Beyond the Scope of Analysis • The Process to Analyze These Areas Will Be Described

9. Equipment Pressure Rating Absolute vs. Differential • Three Scenarios Were Analyzed • Surface – 20 KSI Internal, Ambient External • Subsea Absolute – 20 KSI Internal, 4,450 External • Subsea Differential – 24.450 KSI Internal, 4.450 KSI External • Results Indicate The Use of Hydrostatic as a Back-Up Should • Continue to be Studied For Pressure Containment Components • Pressure Controlling Components Still Are Limited By Application • In Gas Or Light Fluid Density Applications • However, Use Of Hydrostatic as a Back-Up Has Many Questions • Not Easily Answered Even For Pressure Containment Components. • API Needs to Develop a Strategy for Going Forward