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公开(公告)号：US4440233A
公开(公告)日：1984-04-03
申请号：US395211
申请日：1982-07-06
申请人： John L. Baugh , Melvin J. Hardy
发明人： John L. Baugh , Melvin J. Hardy
摘要： A setting tool of the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore is shown which has a mandrel having an upper end adapted to be connected in the pipe string and having a lower end. A setting nut carried on the mandrel has external connecting threads for engaging mating connecting threads located on the interior of a setting sleeve disposed about the lower end of the mandrel. The mandrel is slidably disposed within the setting means when the setting means is engaging the setting sleeve. The mandrel is slidable between an extended running-in position and a weight-set down position. Dogs are provided in the setting nut for engaging a radial groove in the setting sleeve when the mandrel is in the running-in position to prevent relative movement between the setting nut and the setting sleeve which would disengage the tool. Setting weight down on the tool causes an undercut area on the mandrel to underlie the dogs in the setting nut thereby allowing the dogs to be disengaged from the setting sleeve groove which in turn allows relative movement between the setting nut connecting threads and the connecting threads of the setting sleeve to disengage the tool. The setting nut connecting threads can be right hand release threads, whereby the setting tool is releasable from the setting sleeve by right hand rotation of the mandrel when the mandrel is in the weight set-down position.
摘要翻译： 示出了适于在管柱中构成的用于可释放地接合井眼中的定位套筒的类型的定位工具，其具有具有适于连接在管柱中并具有下端的上端的心轴。 承载在心轴上的调整螺母具有外部连接螺纹，用于接合位于围绕心轴下端设置的定位套筒内部的配合连接螺纹。 当设置装置接合安装套筒时，心轴可滑动地设置在设置装置内。 心轴可以在延长的进入位置和配重向下位置之间滑动。 当心轴处于运行位置时，狗设置在调整螺母中用于接合设置套筒中的径向凹槽，以防止调整螺母和固定套筒之间的相对移动，这将使工具脱离。 在工具上设置重量会导致心轴上的底切区域位于调节螺母中的下方，从而允许将狗与定位套筒槽脱离，这样可以使定位螺母连接螺纹和连接螺纹之间的相对运动 设置套筒脱开工具。 固定螺母连接螺纹可以是右手释放螺纹，由此当心轴处于重量下降位置时，定位工具可通过心轴的右手旋转而从定型套筒释放。
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