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公开(公告)号:US20130192847A1
公开(公告)日:2013-08-01
申请号:US13645738
申请日:2012-10-05
IPC分类号: E21B33/076 , E21B33/068
CPC分类号: E21B33/085 , E21B33/02
摘要: Rotating control device related oilfield pressure control is accomplished by upper and lower seal members configured to seal around a tubular, a chamber defined between the upper and lower seal members; and wherein fluid enters and/or exits the chamber via some device or structure. Such a device or structure could be a relief valve, a first accumulator, a pressure control valve, an orifice, and/or a void space in a seal member in a location which contacts the tubular.
摘要翻译: 旋转控制装置相关的油田压力控制由上和下密封构件来实现,所述上密封构件和下密封构件构造成围绕管状密封,限定在上密封构件和下密封构件之间的腔室; 并且其中流体通过某种装置或结构进入和/或离开室。 这样的装置或结构可以是在与管状物接触的位置处的密封构件中的安全阀,第一储存器,压力控制阀,孔口和/或空隙空间。