Forties Oil Field

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UK Oil & Gas Fields

Apache Oil & Gas Fields

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Summary Information

  • Operator: Apache
  • Country: United Kingdom
  • Location: North Sea
  • Production start: 1975
  • Partners:
  • Type: Oil
  • Estimated Reserves: At year-end 2010, Apache had total estimated proved reserves of 155 million barrels of crude oil
  • Production Volume: 57,000 bpd

Description

  • Forties is one of the oldest and largest oil fields in the UK
  • The field consists of a complex of platforms
    • The FA, FB, FC & FD Platforms are all Large Steel Manned Platforms
    • The FE & Unity Riser Platforms are small steel unmanned platforms
  • Oil is transported onshore by the Forties Pipeline System, which was the UK's first offshore pipeline
  • A number of satellite fields are tied into Forties, including the Bacchus Oil Field and the Maule Oil Field
  • The field is being redeveloped with the addition of the Forties Alpha Satellite Platform (FASP)

Contractors

  • Laing Offshore: Forties FA & FB Platforms
  • Highlands Fabricators: Forties FC & FD Platforms
  • Brown & Root: Forties Bravo Accommodation block
  • William Press/Penn Baudwin: Construction of Modules
  • AMEC: Project management, engineering and procurement for the design and implementation of brownfield modifications to the Forties Alpha platform
  • KANFA Aragon: FORTIES Alpha Satellite TEG dehydration Module
  • OGN: Design and construction of the Forties Alpha Satellite Platform (FASP)
  • BiFab: Unity Platform - Riser Platform Topsides. Deck Structure
  • Bibby Offshore: Forties Echo riser/subsea construction
  • Alderley: Water processing system - Forties Bravo

Artificial Lift Project

  • BiFab:
    • Flare Tie-Ins, Drain Systems and Compressor Pipework. Process Pipework in Stainless Steel, Carbon Steel and Low Temperature Carbon Steel
    • Water Injection Manifolds and Pipework
    • 2 Deep Gas Injection Process Modules. 90 Tonnes each

History

  • 1970 - The Forties Oil Field is discovered by BP
  • 1975 - UK government approval granted
  • 1975 - First oil was produced
  • 1979 - Production form the Forties Field, peaked at 500,000 barrels a day - representing about 25% of UK oil demand at the time
  • 2003 - Apache acquired an approximate 97-percent working interest in the Forties field.
  • 2010 - AMEC chosen to undertake project management, engineering and procurement for the design and implementation of brownfield modifications to the Forties Alpha platform
  • 2012 - Apache announced that the jacket for the Forties Alpha Satellite Platform (FASP) had arrived at the Forties Field

Geology

  • The field originally held well over 500 billion litres of oil in its sandy reservoir rock. This rock was deposited as a submarine fan sediment 55 million years ago (F37 and 38).
  • At Forties Field, these sandy layers have draped and sagged across a 'hump' in the underlying rocks. The Main Sand reservoir is composed mostly of sandy sediment deposited as a submarine fan, while much of the separate Charlie Sand accumulated within feeder channels of sand flowing across the sea floor.
  • Oil has migrated upwards from Kimmeridge Clay source rock within the buried rift valley, and has then travelled along the sand layers. Some of the migrating oil has then been trapped within the dome-shaped beds of sandstone above the underlying hump.

Links

  1. Apache, North Sea
  2. International Protective Coatings Platform References
  3. List Of Oil and Gas Production Platforms In The UK
  4. FoundOcean Subsea References
  5. Bifab Subsea References
  6. BiFab Platform References
  7. Bibby Offshore Subsea References
  8. Nessco Platform References
  9. AMEC awarded Forties contract by Apache North Sea Limited
  10. BP To Sell Forties Field And Gulf Of Mexico Assets To Apache For $1.3 Billion
  11. A closer look at some North Sea fields
  12. Apache Continues To Infuse New Life Into UK's North Sea
  13. FORTIES Alpha Satellite TEG dehydration Module
  14. Over £400 Million and 7,000 Jobs: British Manufactured Oil Platform Set For Sail Away Down The Tyne To The Forties Field To Boost North Sea Output
  15. Process Systems package win for North Sea

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