| 发明名称 |
Magnetic measurements while rotating |
| 摘要 |
Measurements made using at least one two-component magnetometers on a rotating bottombole assembly are processed to correct for disturbance of the magnetic field due to the rotating drillstring and get an estimate of instantaneous toolface angle. |
| 申请公布号 |
GB2434453(A) |
申请公布日期 |
2007.07.25 |
| 申请号 |
GB20070009828 |
申请日期 |
2005.10.24 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
MARTIN BLANZ;ANDREW GOODWIN BROOKS |
| 分类号 |
E21B47/024;E21B47/022;G01C17/00 |
主分类号 |
E21B47/024 |
| 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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