发明名称 |
EXPANDABLE ANCHOR |
摘要 |
An expandable downhole anchoring tool positionable within a wellbore for use in cooperation with drilling equipment comprises a body including a plurality of angled channels formed into a wall thereof, and a plurality of moveable slips disposed in the same radial plane around the body, wherein the plurality of moveable slips are hydraulically translatable along the plurality of angled channels between a collapsed position and an expanded position. A method of setting an expandable anchor within a wellbore comprises running the anchor into the wellbore in a collapsed position, and expanding the anchor into gripping engagement with the wellbore, wherein the anchor is adapted to expand up to at least 1.5 times a collapsed diameter of the anchor.
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申请公布号 |
CA2498914(C) |
申请公布日期 |
2011.01.25 |
申请号 |
CA20052498914 |
申请日期 |
2005.03.01 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
DEWEY, CHARLES H.;CRUICKSHANK, BRIAN W.;CAMPBELL, JOHN E. |
分类号 |
E21B23/01;E21B;E21B7/08;E21B23/04;E21B43/12;E21B43/14;E21B43/32 |
主分类号 |
E21B23/01 |
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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