| 发明名称 |
A METHOD FOR DETERMINING DRILL COLLAR WHIRL IN A BOTTOM HOLEASSEMBLY AND METHOD FOR DETERMINING BOREHOLE SIZE |
| 摘要 |
<p>A method for determining drill collar whirl includes manipulating a plurality of variables in mathematical equations to solve for various values. The values are plotable overtime and provide graphic representations of conditions of forward or backward whirl with and without slip.</p> |
| 申请公布号 |
CA2270637(A1) |
申请公布日期 |
1999.11.05 |
| 申请号 |
CA19992270637 |
申请日期 |
1999.05.03 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
JOGI, PUSHKAR NATH |
| 分类号 |
E21B44/00;E21B47/00;(IPC1-7):E21B47/00;E21B45/00 |
主分类号 |
E21B44/00 |
| 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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