API SC2 Offshore Structures Report

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API SC2 Offshore Structures Report

• P. OConnor Chair
• June 26, 2009

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Document Portfolio Status
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Status Report

• RP 2MET, Derivation of Metocean Design and
  Operating Conditions in progress
• RP 2FPS, Floating Production Systems in
  progress
• RP 2EQ, Seismic Design Procedures and Criteria
  for Offshore Structures in progress
• RP 2GEO, Geotechnical and foundation design
  considerations in progress
• RP 2A WSD, Fixed Steel Offshore
  StructuresWorking Stress Design in progress

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Status Report (cont.)

• Spec 2C, Offshore Cranes in progress
• RP 2GEN, General Requirements for Offshore
  Structures starting up
• RP 2SIM, Structural Integrity Management of
  Fixed Offshore Structures in progress
• RP 2SM, Design, Manufacture, Installation, and
  Maintenance of Synthetic Fiber Ropes for Offshore
  Mooring in progress
• RP 2T, Tension-leg Platforms ballot completed
  awaiting publication

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Active Research Projects

• Rig tie-down study )
• Require 25,000 to update Bulletin 2TD
• Steel yield study
• Wave-in-deck study
• Mooring components toughness survey
• Synthetic hurricane database

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ISO Status
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API/ISO Coordination

• Developed by adopting back ISO documents using a
  core and wrapper approach (i.e. modified
  adoption)
• RP 2FPS 2nd Ed./ISO 19904-1 Floating Structures
• RP 2MET/ISO 19901-1 Metocean
• RP 2EQ/ISO 19901-2 Seismic Design
• RP 2GEO/ISO 19901-4 - Geotechnical

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API/ISO Coordination

• Developed by Parallel ISO/API Adoption process
  (i.e. identical adoption)
• RP 2MOP/ISO 19901-6 Marine Operations
• RP 2N 2nd Ed./ISO 19906 Arctic Structures
• RP 2RD 2nd Ed./ISO 13628 - Risers

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API/ISO Coordination

• Adoption approach under consideration
• RP 2GEN/ISO 19900 Gen. Considerations
• RP 2A LRFD 2nd Ed./ISO 19902 Fixed Steel
  Structures
• RP 2TOP/ISO 19901-3 Topsides
• RP 2WGT/ISO 19901-5 Weight Control
• RP 2SK/ISO 19901-7 - Stationkeeping

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Important Issues

• Acceptance criteria for fixed structures
• Consequence-based design
• Assessment of existing structures
• may need budget for 2010 to validate selected
  values
• Changes in metocean criteria ( MMS Reliability
  concerns)
• Sudden hurricanes
• Post-hurricane inspections
• Rig Tie-downs Require 25,000 to update
  Bulletin 2TD

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