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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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