Amerada Hess Ltd. has received U.K. Department of Energy approval to develop Scott oil field in Central North Sea Blocks 15/21 and 15/22.
Scott, which holds 450 million bbl of oil, 290 bcf of gas and 40 million bbl of gas liquids, is scheduled to go on stream at the end of 1993.
Plateau oil production will be about 180,000 b/d. The field will require water injection capacity of 230,000 b/d.
To cost about 1 billion ($1.86 billion), Scott is the biggest current project off the U.K.
Amerada has agreed to transport Scott oil through the Forties pipeline system. The production complex will tie into Forties via a 43 mile, 24 in. pipeline.
Scott gas will move through a 10 mile, 10 in. link with Mobil North Sea Ltd.'s Scottish Area Gas Evacuation (SAGE) system, currently under construction.
Amerada has awarded contracts to McDermott Scotland for fabrication of two steel jackets for Scott's drilling/production platform and utilities/power generation structure.
SUBSEA CLUSTERS
Subsea well clusters will employ technology developed by Amerada in nearby Ivanhoe/Rob Roy field. There will be three production well clusters and an eight well water injection manifold in the eastern part of the field.
There will be a similar but larger subsea production/injection complex in the western part of the field with eight injectors and four producers. A third manifold with eight injection wells will lie in the south. end of the field.
Seven subsea producers and eight subsea injectors will be completed and hooked up to allow plateau oil flow to be reached as quickly as possible.
The drilling/production platform will have 28 slots, but the number of platform wells is not decided.
Amerada chose subsea systems rather than a subsea template under the drilling platform because the former configuration will allow use of more than one rig at a time.
The subsea wells can be completed and tied back through the pipeline end manifold, leaving only a relatively simple tieback to the platform complex.
Amerada's working interest in Scott is 30.08013%. Its partners are Deminex U.K. Oil & Gas Ltd. 21.66667%, Amoco (U.K.) Exploration Co. and Enterprise Oil plc 12.884615% each, Mobil North Sea 10%, Kerr-McGee Oil (U.K.) plc 5.41666%, North Sea Inc. 5.19231%, and Pict Petroleum plc 1.875%.
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