发明名称 |
HYDRAULIC STABILIZER FOR USE WITH A DOWNHOLE CASING CUTTER |
摘要 |
A downhole tool includes a radial expansion assembly deployed about, and configured to rotate substantially freely with respect to, a tool mandrel. The expansion assembly includes at least one stabilizer block configured to extend radially outward from the mandrel into contact with a wellbore casing string. When deployed between uphole and downhole cones, the stabilizer block includes a plurality of angled splines configured to engage corresponding splines on the cones. Relative axial motion between the stabilizer block and the cones causes a corresponding radial extension or retraction of the stabilizer block. |
申请公布号 |
EP2734702(A1) |
申请公布日期 |
2014.05.28 |
申请号 |
EP20120825557 |
申请日期 |
2012.08.24 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
SIMSON, JAMES A.;SCHMIDT, RONALD G.;DEWEY, CHARLES H. |
分类号 |
E21B29/08;E21B17/10;E21B23/01;E21B29/00 |
主分类号 |
E21B29/08 |
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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