| 发明名称 |
METHOD OF CORRECTING FOR AXIAL ERROR COMPONENTS IN MAGNETOMETER READINGS DURING WELLBORE SURVEY OPERATIONS |
| 摘要 |
<p>A method is provided for deriving wellbore azimuth in a manner which reduces the impact of axial magnetic field errors, which utilizes a plurality of estimates of the axial component of the magnetic field which are combined in a manner which emphasizes the better estimates and deemphasizes the poorer estimates.</p> |
| 申请公布号 |
CA2134190(A1) |
申请公布日期 |
1995.05.20 |
| 申请号 |
CA19942134190 |
申请日期 |
1994.10.24 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
DIPERSIO, RICHARD D. |
| 分类号 |
E21B47/022;G01V3/26;(IPC1-7):G01V3/26;G01R33/02;G01V3/38 |
主分类号 |
E21B47/022 |
| 代理机构 |
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