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Geological Society, London, Memoirs; 1991; v. 14; p. 145-151;
DOI: 10.1144/GSL.MEM.1991.014.01.18
© 1991 Geological Society of London

Part 2: The Viking Graben

Northwest Hutton Field, Block 211/27, UK North Sea

The Northwest Hutton oil field lies in the East Shetland Basin entirely within UK Block 211/27. It was discovered by the Amoco Group 211/27-3 well in April 1975 and is operated by Amoco (UK) Exploration Company. The structure is a series of tilted fault blocks. The reservoir sandstones are the Brent Group Sandstones of Middle Jurassic age deposited in a progradational deltaic environment. The Brent Group sandstones vary in thickness from 320-500 ft over the field. Average porosity ranges from 20% at the crest of the structure to 13% on the western flank with permeability decreasing from an average of 267 md to 1 md. Recoverable oil is estimated to be 145 MMBBL. A total of 26 producing and 9 water injection wells have been drilled from a single steel jacket platform. Production peaked in May 1983 at 86 680 BOPD.