发明名称 Running tool for use with reeled tubing and method of operating same
摘要 A running tool for use with reeled tubing and a method of operating same in which a piston assembly extending over a portion of an inner mandrel assembly and in engagement with a locking device. Shear pins connect the piston assembly relative to the inner mandrel assembly and a fluid chamber is defined by cooperating shoulders formed on the inner mandrel assembly and the piston assembly. The inner mandrel assembly has a bore which can be connected to the fluid chamber for establishing fluid pressure in the fluid chamber to exert oppositely directed forces on the shoulder to shear the shear pins in response to a predetermined value of the fluid pressure to permit axial movement of the piston assembly to actuate the locking device.
申请公布号 US4986362(A) 申请公布日期 1991.01.22
申请号 US19890417282 申请日期 1989.12.08
申请人 PLEASANTS, CHARLES W. 发明人 PLEASANTS, CHARLES W.
分类号 E21B23/02;E21B23/04 主分类号 E21B23/02
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