发明申请
- 专利标题: Expandable anchor
- 专利标题(中): 可扩展锚点
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申请号: US11069282申请日: 2005-03-01
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公开(公告)号: US20050194151A1公开(公告)日: 2005-09-08
- 发明人: Charles Dewey , Brian Cruickshank , John Campbell
- 申请人: Charles Dewey , Brian Cruickshank , John Campbell
- 申请人地址: US TX Houston
- 专利权人: Smith International, Inc.
- 当前专利权人: Smith International, Inc.
- 当前专利权人地址: US TX Houston
- 主分类号: E21B
- IPC分类号: E21B20060101 ; E21B7/08 ; E21B23/01 ; E21B23/04 ; E21B43/12 ; E21B43/14 ; E21B43/32
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.
公开/授权文献
- US07377328B2 Expandable anchor 公开/授权日:2008-05-27