发明名称 Manipulator tool and tool catcher useful with wellbore reverse circulation
摘要 A method for reverse circulating a tool upwardly through a wellbore, the method including: providing a manipulator tool including an upper end and a lower end, conveying the manipulator tool down hole to a position adjacent a downhole tool, using the manipulator tool to manipulate the downhole tool, and reversing fluid flow through the well to create a pressure differential about at least one of the manipulator tool and the downhole tool such that the at least one of the manipulator tool and the downhole tool is lifted upwardly through the wellbore. A manipulator tool for use in a reverse circulating method is also described as are a tool catcher, a tool catching assembly and a tool catching method.
申请公布号 US8881835(B2) 申请公布日期 2014.11.11
申请号 US201313898212 申请日期 2013.05.20
申请人 Schlumberger Technology Corporation 发明人 Tessari Robert M.;Tate Barry J.;Warren Tommy M.
分类号 E21B23/08;E21B23/12;E21B10/64;E21B23/10;E21B31/00 主分类号 E21B23/08
代理机构 Osha Liang LLP 代理人 Osha Liang LLP
主权项 1. A wellbore manipulator tool for manipulating a downhole tool releasably secured to a tubular string, comprising: a body having an upper end and a lower end; a seal extending circumferentially about the body; an actuator portion formed to manipulate the downhole tool when the manipulator tool is in an engaged position with the downhole tool, a wireline attachment on an upper end of the manipulator tool, wherein the actuator portion is formed to engage the downhole tool to apply a pulling force thereto; the manipulator tool being conveyable from an upper end of the tubular string to the downhole tool by differential fluid pressure acting against the seal; and the downhole tool being liftable in the tubular string from the engaged position by reverse fluid flow in the tubular string.
地址 Sugar Land TX US