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Subsea electrical power for marginal-well systems

Journal Article · · World Oil
OSTI ID:415710
Many remaining offshore oil and gas fields are too small, remote or deep to be exploited economically using existing technology. But economics would be more attractive if electrical power could be made available on the ocean floor. Hence, step-out distances and access to marginal wells in both shallow and deep water, should markedly increase with the advent of subsea electrical power. Distribution will be easier and costs lower, by comparison with existing systems, because it will be possible to site transformers, switchgear and variable-speed controllers near wellheads to drive equipment such as pumps and valves. In a project run by GEC Alsthom Engineering Systems Ltd., testing of underwater power-distribution equipment started in fall 1996, and submerged trials will begin at the end of the year. The project is sponsored by Amerada Hess, BP, Shell, Texaco, GEC Alsthom and the UK Department of Trade and Industry. It will address problems such as siting equipment at various depths and heat removal through waterproof enclosures.
OSTI ID:
415710
Journal Information:
World Oil, Journal Name: World Oil Journal Issue: 12 Vol. 217; ISSN 0043-8790; ISSN WOOIAS
Country of Publication:
United States
Language:
English

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