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.
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. +Reservoir characteristicsReservoirBrigantine ABrigantine BBrigantine CBrigantine DShamrockCaravelCorvetteBlock49/1949/1949/1949/1949/20a49/2049/24Year discovered1986199719982001197120021996Gas reservoirRotliegendRotliegendGas 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.##2 1 3 7 +Installation characteristicsInstallationBrigantine BRBrigantine BGShamrock QSCaravel QRCorvette CVBlock49/1949/1949/20a49/20a49/24Coordinates53.442744 2.69820253.402498 2.65640053.495192 2.97453153.542131 3.02570653.231944 2.622778Water depth, m2929293029OwnerShellShellShellShellShellTypeFixed steelFixed steelMonotowerMonotowerFixed steelSubstructure weight, tonnes360394180270910Topsides weight, tonnes152162270180970Production start20012001200820081999Production export (by pipeline) toBrigantine BGCorvette CVCaravel QRCorvette CVLeman A complexExport 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. Gas from these installations flows to the Leman A complex and from there to the Bacton gas terminal. +Gas productionReservoirBrigantine ABrigantine BBrigantine CBrigantine DShamrockCaravelCorvetteProduction start2001200120022003200820081999Peak production, mcm/y639573655354118731,782Peak year2003200120032006201020111999Cumulative production, mcm/y2,6731,5612,247901,1372,5684,780End of production20082008200820082009
See also
Leman gas field Bacton gas terminal List of oil and gas fields of the North Sea
References