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The Britannia Field, Blocks 15/29a, 15/30, 16/26, 16/27a, 16/27b, UK North Sea

By
P. J. Hill
P. J. Hill
Britannia Operator Limited, Royfold House, Hill of Rubislaw, Aberdeen AB15 6GZ, UKPresent address: Conoco Phillips (UK) Ltd, Hill of Rubislow, Aberdeen AB15 6GZ, UK
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A. J. Palfrey
A. J. Palfrey
Britannia Operator Limited, Royfold House, Hill of Rubislaw, Aberdeen AB15 6GZ, UKPresent address: Chevron Texaco Overseas Petroleum, Southern Africa Business Unit, 4800 Fournace Place, Bellaire, Texas 77401, USA
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Published:
January 01, 2003

Abstract

The Britannia Field is located 140 miles NE of Aberdeen at the southeast end of the Witch Ground Graben, on the southern flank of the Fladen Ground Spur. Gas and condensate are trapped in Lower Cretaceous (Aptian) deepwater, marine sandstones in a combined stratigraphic/structural trap that straddles four UKCS blocks. Reservoir quality varies from west to east across the field. The principal reservoirs in the west (Blocks 15/29a, 15/30) are in clean, blocky, high-density turbidite sands. The principal reservoirs in the east (Blocks 16/26, 16/27a, 16/27b) are in fine-grained sandstones and unusual slurried facies that have a high mud content and show gravity-driven structuring. The bulk of the field’s reserves lies in the east and is produced via a 36-slot platform. A 14-slot sub-sea template tied back to the platform via a nine-mile flowline bundle produces the western area. Reserves are being developed by pressure depletion and are estimated at 3 TCF gas together with 131 MMBOE condensate and natural gas liquids. Britannia came on-stream in August 1998 and is expected to have a field life in the order of 30 years.

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Contents

Geological Society, London, Memoirs

United Kingdom Oil and Gas Fields Commemorative Millennium Volume

J. G. Gluyas
J. G. Gluyas
Acorn Oil Gas Ltd, Staines, Middlesex, UK
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H. M. Hichens
H. M. Hichens
Oil and Gas Directorate, London, UK
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Geological Society of London
Volume
20
ISBN electronic:
9781862393950
Publication date:
January 01, 2003

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