Brigantine, Caravel, Corvette and Shamrock gas fields

Last updated
Corvette gas field
CountryUnited Kingdom
RegionSouthern North Sea
Location/blocks49/24
Offshore/onshoreOffshore
Coordinates53.231944N 2.622778E
OperatorShell
OwnerShell Esso
Field history
Discovery1996
Start of production1999
Production
Recoverable gas211×10^9 cu ft (6.0×10^9 m3)
Producing formationsRotliegendes

The Brigantine, Caravel, Corvette and Shamrock fields are natural gas reservoirs and gas production facilities in the southern North Sea, close to the UK/Netherlands median line. The fields have produced natural gas since 1999.

Contents

The fields

The Brigantine, Caravel, Corvette and Shamrock gas fields are located in the adjacent UK Offshore Blocks 49/19, 49/20 and 49/24. Brigantine, Caravel and Corvette follow Shell's convention of naming southern North Sea fields after types of sailing vessels. Brigantine has four gas accumulations designated A-D. The gas reservoirs have the following characteristics. [1] [2] [3] [4]

Reservoir characteristics
ReservoirBrigantine ABrigantine BBrigantine CBrigantine DShamrockCaravelCorvette
Block49/1949/1949/1949/1949/20a49/2049/24
Year discovered1986199719982001197120021996
Gas reservoir Rotliegend Rotliegend
Gas reserves280 billion cubic feet or 10 billion cubic metres211 billion cubic feet

Development

The gas producing capability of the fields was realised through five offshore platforms, their characteristics are summarised in the table. [5] [1] [6] [7] ##2 1 3 7

Installation characteristics
InstallationBrigantine BRBrigantine BGShamrock QSCaravel QRCorvette CV
Block49/1949/1949/20a49/20a49/24
Coordinates53.442744 2.69820253.402498 2.65640053.495192 2.97453153.542131 3.02570653.231944 2.622778
Water depth, m2929293029
OwnerShellShellShellShellShell
TypeFixed steelFixed steelMonotowerMonotowerFixed steel
Substructure weight, tonnes360394180270910
Topsides weight, tonnes152162270180970
Production start20012001200820081999
Production export (by pipeline) toBrigantine BGCorvette CVCaravel QRCorvette CVLeman A complex
Export pipeline, length and diameter5.4 km, 20”19.6 km, 20”4.95 km, 16”33.3 km, 16”36.6 km, 20”

Production

Gas production from the fields is summarised in the table. [1] Gas from these installations flows to the Leman A complex and from there to the Bacton gas terminal.

Gas production
ReservoirBrigantine ABrigantine BBrigantine CBrigantine DShamrockCaravelCorvette
Production start2001200120022003200820081999
Peak production, mcm/y639573655354118731,782
Peak year2003200120032006201020111999
Cumulative production, mcm/y2,6731,5612,247901,1372,5684,780
End of production20082008200820082009

The production profile, in mcm/y, of the Corvette field was as shown. [1]

See also

References

  1. 1 2 3 4 "Oil and Gas UK – Field data". www.gov.uk. Archived from the original on 2015-10-27. Retrieved 8 December 2021.
  2. ↑ "The Corvette field". mem.lyellcollection.org. Archived from the original on 2021-12-08. Retrieved 8 December 2021.
  3. ↑ "Brigantine field development gets green light". www.ogj.com. 19 July 2000. Archived from the original on 2021-12-08. Retrieved 8 December 2021.
  4. ↑ "England's Historic Seascapes: Withernsea to Skegness". archaeologydataservice.ac.uk. Archived from the original on 2021-12-08. Retrieved 8 December 2021.
  5. ↑ "Inventory of Offshore Installations". odims.ospar.org. Archived from the original on 2021-11-25. Retrieved 8 December 2021.
  6. ↑ "OGA interactive Maps". ogauthority.maps.arcgis.com. Archived from the original on 2019-01-26. Retrieved 8 December 2021.
  7. ↑ "Standardised monotowers". hsmoffshoreenergy.com. Archived from the original on 2021-12-08. Retrieved 8 December 2021.
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