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The Gawain Field, Blocks 49/24, 49/29a, UK North Sea

By
R. A. Osbon
R. A. Osbon
Present address: Santos Ltd, Santos House, 91 King William Street, Adelaide 5000, Australia
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O. C. Werngren
O. C. Werngren
Present address: BP Exploration Operating Company, Farburn Industrial Estate, Dyce, Aberdeen AB21 7BN, UK
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A. Kyei
A. Kyei
Present address: Dome Exploration Consultant Ltd, 46 Downlands Road, Purley, Surrey CR8 4JE, UK
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D. Manley
D. Manley
Present address: BP Exploration Operating Company, Chertsey Road, Sunbury on Thames, Middlesex TW16 7LN, UK
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J. Six
J. Six
Present address: Chevron Petroleum Technology Co., 4800 Fournace Place, Houston, Texas 77401
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Published:
January 01, 2003

Abstract

The Gawain Field is located on the Inde shelf in the Southern North Sea, 85 km NE of the Norfolk coast. Gawain was discovered in 1970 by well 49/29-1 and a total of nine wells have been drilled on the structure. Gas is produced from the Leman Sandstone Formation of Early Permian age. The reservoir section is comprised predominantly of stacked aeolian dune sands possessing excellent poroperm characteristics. The structure is a complex NW-SE trending horst block with a common gas-water contact at 8904 ft TVDss. Low structural relief has presented a major challenge to field development, which has utilized extended reach wells to maximize drainage potential. Initial gas-in-place is estimated at 289 BCF with recoverable reserves in the order of 196 BCF. The field came on production in September 1995 via a sub-sea tie back to the Thames infrastructure and has an expected field life of 10 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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