发明名称 BLOWOUT PREVENTER LOCKING DOOR ASSEMBLY AND METHOD OF USING SAME
摘要 A locking door assembly, blowout preventer and method are provided. The blowout preventer is for sealing about a tubular extending from a wellbore of a wellsite. The blowout preventer includes a housing having a bore and a channel therethrough. The tubular is positionable through the bore and engageable therein. The blowout preventer also includes a door assembly including a door slidably positionable along an axis of the channel and providing selective access to the channel, and a lock. The lock includes at least one locking member having at least one raised portion extending along the door assembly in a direction transverse to the axis of the channel. The locking member is extendable into at least one corresponding receptacle of the housing and movable therealong between an unlocked and a locked position whereby the door assembly is selectively retractable from the housing.
申请公布号 WO2013155200(A2) 申请公布日期 2013.10.17
申请号 WO2013US36001 申请日期 2013.04.10
申请人 NATIONAL OILWELL VARCO, L.P. 发明人 JAHNKE, DOUGLAS, A.
分类号 E21B33/06;E06B5/00 主分类号 E21B33/06
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