North Sea test assesses all-electric subsea tree

Under test at the BP PLC Magnus field in the North Sea is the first all-electric subsea tree (Fig. 1). The Cameron division of Cooper Cameron Corp. envisions that the tree will provide the industry with an alternative to hydraulic or electro-hydraulic controls for actuating valves on subsea completed wells. Click here to enlarge imageMark Crews, vice-president of technology for Cameron, said "Hydraulics are less responsive and less efficient as production moves into deeper waters and at greater distances from the host facility. "A DC-powered system is the logical progression of subsea technology. It's less risky and more cost-effective than other hydraulic and battery-operated subsea...

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