发明名称 DOWNHOLE ACTIVATION ASSEMBLY WITH SLEEVE VALVE AND METHOD OF USING SAME
摘要 A downhole activation assembly for a wellsite is provided. The wellsite has a downhole tool deployable into a wellbore. The activation assembly includes a ball, a housing, an indexing assembly, and a sleeve valve. The housing is operatively connectable to the downhole tool, and has a housing passage for flow of fluid therethrough. The indexing assembly is positionable in the housing, includes a multiple position indexer and an indexing tube, and is operatively connectable to the downhole tool. The sleeve valve includes a fixed sleeve and a movable sleeve positionable in the housing passage of the housing and defines a ball passage therethrough. The sleeve valve has a valve seat defined therein to receive the ball such that the flow of the fluid is selectively restricted through the ball passage. The movable sleeve is engagable with the indexing tube to selectively shift the indexer between multiple positions whereby the downhole tool is selectively activatable.
申请公布号 US2015027725(A1) 申请公布日期 2015.01.29
申请号 US201414341634 申请日期 2014.07.25
申请人 National Oilwell DHT, L.P. 发明人 Adam Mark
分类号 E21B34/16;E21B34/00 主分类号 E21B34/16
代理机构 代理人
主权项 1. An activation assembly for a wellsite having a wellbore penetrating a subterranean formation, the wellsite having a downhole tool deployable into the wellbore, the activation assembly comprising: a ball; a housing operatively connectable to the downhole tool, the housing having a housing passage for flow of fluid therethrough; an indexing assembly positionable in the housing, the indexing assembly comprising a multiple position indexer and an indexing tube, the indexing assembly operatively connectable to the downhole tool; and a sleeve valve comprising a fixed sleeve and a movable sleeve positionable in the housing passage of the housing and defining a ball passage therethrough, the sleeve valve having a valve seat defined therein to receive the ball such that the flow of the fluid is selectively restricted through the ball passage, the movable sleeve engagable with the indexing tube to selectively shift the indexer between multiple positions whereby the downhole tool is selectively activatable.
地址 Houston TX US