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Spars for Deepwater Developments

Explore Anadarko Petroleum Corp's 15-year deepwater history, Spar technology evolution, fabrication process, and offshore industry contributions. Learn how spars facilitate efficient oil and gas recovery in deepwater developments.

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Spars for Deepwater Developments

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  1. Spars for Deepwater Developments Don Vardeman VP, Worldwide Projects Anadarko Petroleum Corp September 9, 2009

  2. Anadarko Deepwater Experience Nearly 15 year history of production growth Independence Hub 160 Red Hawk Baldpate 140 Nansen Gunnison 120 Pompano 100 Constitution Blind Faith Neptune Net Daily Production (MBOE) 80 Marco Polo 60 Boomvang 40 Conger Northwestern 20 0 1995 1999 2003 2005 1993 1997 2007 2009 2001

  3. History Of The SparFlip - Spar Vessel

  4. Ed Horton – Spar Inventor • Started Deep Oil Technology in mid 1980’s • Identified Spar technology as a candidate for use as a production facility • Received citation from OTC in 1997 for his contributions to the offshore industry, Member of National Academy of Engineering, and National Academy of Science

  5. Patented in 1986 by Ed Horton for deepwater development Deep draft (450’ to 650’) provides excellent storm performance and stability for operations Riser system enables direct wellbore access 3 Generations of Spar technology pioneered by APC/Ed Horton/Technip/McDermott supply chain Classic spar (1997) – 705’ cylinder Truss spar (2002) – truss reduces length, weight, fabrication and transportation cost, improves performance Cell spar (2004) – multiple smaller cylinders reduce fabrication cost 17 Spars in operation 6 are APC operated 12 Fabricated in Technip’s Pori, Finland yard Deepest is Shell’s Perdido in 7816’ in GOM Production capacity from 250 MMCFD (APC’s Red Hawk cell spar) to 125,000 BOPD (Chevron’s Tahiti truss spar) What is a Spar? CLASSIC SPAR 72’ TO 122’ diameter APC – Neptune - 1997 TRUSS SPAR 90’ TO 149’ diameter APC – Nansen - 2002 CELL SPAR 64’ diameter APC- Red Hawk - 2004

  6. Typical Truss Spar Performance Characteristics

  7. Neptune Hull – Hard Tank • Upper 220 ft of the hull • Subdivided into smaller watertight compartments • Four lower contain seawater ballast • Remainder are dry, void spaces • Double-wall hull around the waterline

  8. Neptune Lower Hull • Middle Section • Protects risers • Lowest Section • “Keel” Tank • Temporary ballast for wet tow

  9. NeptuneMooring System

  10. NeptuneOffset Drilling With MODU

  11. Neptune Offset Drilling with MODU

  12. Neptune Riser Structure

  13. Riser Systems

  14. Spar Fabrication

  15. Spar Fabrication 15

  16. Spar Transportation

  17. Spar Installation 17

  18. Spar Development – Nansen and Boomvang Spars

  19. Enables multiple fields to be gathered on one floating host platform for processing Record gas well tieback is 89 miles Record oil well tieback is 43 miles Subsea pumping technology expands recovery radius Presence of floater is an enabler for economic recovery of reserves as additional discoveries are made in a region. Cumulative efficiency synergies enable marginal tiebacks. APC operates spars, tension leg platforms, deep draft semi-submersibles and FPSOs as host facilities. Hub and Spoke Developments Constitution Spar Hub

  20. Weather Conditions Influence Cost and Schedule Hurricane Ivan in 2004 in Gulf of Mexico – Direct hit on Anadarko’s Neptune Spar

  21. How APC Facilities Responded

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