发明名称 WELLHEAD CONNECTOR AND METHOD OF USING SAME
摘要 The techniques herein relate to a blowout preventer a wellhead of a wellbore penetrating a subterranean formation. The blowout preventer includes a housing having a bore therethrough, a segment carrier positionable in the housing, and a piston. The segment carrier includes a carrier ring for receiving the mandrel and a plurality of segments pivotally movable radially thereabout. The piston is operatively connectable to the plurality of segments and actuatable for moving the plurality of segments between a disengaged and an engaged position about the mandrel.
申请公布号 US2013199801(A1) 申请公布日期 2013.08.08
申请号 US201213365976 申请日期 2012.02.03
申请人 JOHNSON CHRISTOPHER DALE;WEIR JAMES WILLIAM;BENNETT DEAN ALLEN;NATIONAL OILWELL VARCO, L.P. 发明人 JOHNSON CHRISTOPHER DALE;WEIR JAMES WILLIAM;BENNETT DEAN ALLEN
分类号 E21B33/12;E21B33/04 主分类号 E21B33/12
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