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2010 12 14 Byrd Decommissioning In The Usa

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2010 12 14 Byrd Decommissioning In The Usa

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A summary of offshore facility decommissioning issues in the USA. Presented to the Society for Underwater Technology, London, UK, December 2010, by Robert C. Byrd, Ph.D., P.E.

A summary of offshore facility decommissioning issues in the USA. Presented to the Society for Underwater Technology, London, UK, December 2010, by Robert C. Byrd, Ph.D., P.E.

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2010 12 14 Byrd Decommissioning In The Usa

  1. 1. DECOMMISSIONING IN THE USA Presented to the Forum on Identifying the Synergies Between Decommissioning and Wreck Removal December 2010 Presented by Robert C. Byrd, PhD, PE
  2. 2. Offshore Platform Components
  3. 3. The Decommissioning Process
  4. 4. Deck Removal
  5. 5. 50 lb. Configured Bulk Charge with Eight Detonators ith Ei ht D t t
  6. 6. BP P15 R1JN Platform Removal Cold Cutting • Water abrasive cutting w/ internal pile cutter
  7. 7. Partial Removal CENTER BRACING CUT OUT CUT CUT LEAVEING A MIN. ONE FOOT STUB FOR SLINGS M.W.L. CUT OFF @ -86 ELEV JUST ABOVE DOUBLER CUT LEAVE 6 INCHES OF LEAVE 6 INCHES OF METAL ON THE OUTER METAL ON THE OUTER EDGE OF LEG A1 & B1 EDGE OF LEG A4 & B4
  8. 8. Active Platforms by Water Depth 3500 3480 Number of Active Platforms 3000 2500 P 2000 1500 o 1000 442 500 N 47 4 25 0 0 to 200 201 to 400 401 to 800 801 to 1000 Above 1000 Water Depth (Meters)
  9. 9. Number of Gulf Of Mexico OCS Platform Installed vs Removed (1942-2008) 250 225 200 Number of Platforms 175 150 f 125 100 75 50 25 0 1940 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 Year Installed Removed
  10. 10. Number of Gulf Of Mexico OCS Platform Installed vs Removed (2000-2008) 225 200 175 Number of Platforms 150 f 125 100 75 50 25 0 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Year Installed Removed
  11. 11. US Gulf of Mexico Inventory Summary 2009 5‐YR  CUMULATIVE 2009  AVERAGE (1947‐2008) Balance (2003‐2008) (2003 2008) Remaining Well  258 380 35,802 16,203 Drilled  D ill d Structures 63 92.4 6,838 3,712 Installed Wells PA  592 424 19,599 Structures 158 141 3,126 , Removed
  12. 12. US GOM– Deepwater Inventory Structure Type Units Fixed Platforms in Depth 400-600 ft (125 – 188 m) 41 Fixed Platforms, including Towers, in Depth 600 - 1700+ ft (188 – 530+ m) 29 Classic Spar 3 Truss Spar T S 12 Cell Spar 1 MiniDOC Spar 2 Mini or New Generation Tension Leg Platform (MTLP) 6 Conventional Tension Leg Platform (TLP) 9 Semi Submersibles (Semi) 8 TOTAL 111
  13. 13. US Pacific OCS Inventory Platform Water Depth Total Name (ft) Weight A 188 6,405 B 190 6,535 C 192 5,796 Edith 161 9,147 Ellen 265 14,016 Elly 255 9,400 Eureka 700 38,360 Gail 739 33,924 Gilda 205 11,690 Gina 95 1,426 Grace 318 11,256 Habitat 290 9,044 Harmony 1,198 78,380 Harvest 675 32,815 Henry 173 4,046 Heritage 1,075 67,515 Hermosa 603 29,516 Hidalgo 430 22,478 Hillhouse 190 5,929 Hogan 154 5,497 Hondo 842 28,713 Houchin 163 5,977 Irene 242 8,646
  14. 14. Hurricane Damage: Major Impact in GOM since 2005
  15. 15. What Changes After Hurricane Damage? Everything, except the Regulations  Decommissioning Costs increase by      10x or more 10x or more
  16. 16. Typical 2005 Hurricane Katrina Damage
  17. 17. Hurricane Katrina Damage (cont ) (cont.)
  18. 18. 2008 Hurricane Ike Damaged Platforms
  19. 19. Vermilion 281 A– Before A
  20. 20. The Platform – After
  21. 21. The Regulatory Environment: In a high state of flux: New people in the BOEMRE (formerly MMS) ( y ) Supplemental Bonding continues pp g to be under review Reefing options being challenged New NTL to remove “Idle Iron”
  22. 22. New Decommissioning NTL The NTL Defines  No longer useful for operations The NTL Defines “No longer useful for operations”  which is used in the regulations for: • Wells • No production 5 years • No plans for future operations • Platforms • Toppled • Has not been used in past 5 years for operations  associated with exploration, development or production  of oil/gas of oil/gas
  23. 23. Idle Wells and Facilities
  24. 24. USA Decommissioning Summary & Conclusions • The GOM has a long history in Decommissioning. • The regulatory climate has grown uncertain The regulatory climate has grown uncertain. • Deepwater Fixed Platform complete removal may  g be a challenge. • Limited availability of resources may be a  challenge, particularly on the US West Coast. • Reversibility a major issue in some deepwater  systems.
  25. 25. Questions?

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