发明授权
US06896051B2 Anti-rotation method and apparatus for limiting rotation of cementing plugs
失效
用于限制固井塞转动的防旋转方法和装置
- 专利标题： Anti-rotation method and apparatus for limiting rotation of cementing plugs
- 专利标题（中）： 用于限制固井塞转动的防旋转方法和装置
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申请号： US10758634申请日： 2004-01-15
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公开(公告)号： US06896051B2公开(公告)日： 2005-05-24
- 发明人: Earl D. Webb , Michael D. Stevens , Steven L. Holden
- 申请人： Earl D. Webb , Michael D. Stevens , Steven L. Holden
- 申请人地址： US OK Duncan
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US OK Duncan
- 代理机构： McAfee & Taft P.C.
- 代理商 Craig W. Roddy
- 主分类号： E21B33/16
- IPC分类号： E21B33/16
摘要：
An apparatus for preventing or limiting the rotation of cementing plugs in a casing string during drillout. The apparatus includes an outer housing with a sleeve disposed therein. The sleeve has an inner surface configured to engage cementing plugs received therein to cause an interference fit. The sleeve will hold the cementing plugs when rotational forces, such as drilling forces, are applied so that during drillout, rotation of the cementing plug is prevented or is at least limited.
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