发明名称 |
Method of correcting for axial error components in magnetometer readings during wellbore survey operations |
摘要 |
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.
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申请公布号 |
US5452518(A) |
申请公布日期 |
1995.09.26 |
申请号 |
US19930155027 |
申请日期 |
1993.11.19 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
DIPERSIO, RICHARD D. |
分类号 |
E21B47/022;G01V3/26;(IPC1-7):E21B47/022 |
主分类号 |
E21B47/022 |
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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