发明名称 MANIPULATOR TOOL AND TOOL CATCHER USEFUL WITH WELLBORE REVERSE CIRCULATION
摘要 <p>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 t he at least one of the manipulator tool and the downhole tool is lifted upwa rdly through the wellbore. A manipulator tool for use in a reverse circulati ng method is also described as are a tool catcher, a tool catching assembly and a tool catching method.</p>
申请公布号 CA2654429(A1) 申请公布日期 2007.12.13
申请号 CA20072654429 申请日期 2007.06.06
申请人 TESCO CORPORATION 发明人 TATE, BARRY J.;TESSARI, ROBERT M.;WARREN, TOMMY, M.
分类号 E21B23/04;E21B23/08;E21B31/00 主分类号 E21B23/04
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