发明名称 Subsea pressure compensation system
摘要 Systems and method for operating subsea devices and pressure compensated reservoir systems useful therewith which in certain aspects, include a chamber with a piston therein acted on an exposed side by water, e.g. sea water, to provide operational hydraulic fluid for operating a subsea device, with a piston rod having an end in a separate chamber acted on by a fluid to compensate for a pressure differential between the pressure of the water on one piston side and the pressure of the operational hydraulic fluid on the other piston side.
申请公布号 US7424917(B2) 申请公布日期 2008.09.16
申请号 US20050087399 申请日期 2005.03.23
申请人 VARCO I/P, INC. 发明人 MARTIN DAVID W.
分类号 E21B29/12 主分类号 E21B29/12
代理机构 代理人
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