发明名称 |
Anti-rotation device for use with well tools |
摘要 |
A drillable, anti-rotation device for limiting the rotation of a downhole tool, such as a cement plug, when drilling out the down hole tool. The drillable, anti-rotation device comprises a drillable sleeve connected within a non-drillable outer tubular member connected within a pipe string. The sleeve has one or more grooves or other indentations, and/or one or more ribs or other protrusions extending inwardly within the interior of the device for gripping or otherwise retarding the rotation of such downhole tool.
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申请公布号 |
US6425442(B1) |
申请公布日期 |
2002.07.30 |
申请号 |
US20000631436 |
申请日期 |
2000.08.02 |
申请人 |
FRANK'S INTERNATIONAL, INC. |
发明人 |
LATIOLAIS, JR. BURNEY;LUTGRING KEITH T.;HAWKINS, III SAMUEL P. |
分类号 |
E21B17/14;E21B29/00;E21B33/12;E21B33/16;(IPC1-7):E21B17/10;E21B43/00 |
主分类号 |
E21B17/14 |
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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