发明名称 |
Elongated coil assembly for electromagnetic borehole surveying |
摘要 |
An apparatus and method for surveying the path of a borehole includes three single-axis electromagnetic field sensors and three single axis gravity direction sensors in the borehole being surveyed. A pair of closely spaced, parallel guide wires carrying oppositely directed electric current in a reference borehole generate a known electromagnetic field, which is detected by the sensors. Mathematical analysis of electromagnetic and gravity measurements determines the lateral location and the direction of drilling in the neighboring borehole.
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申请公布号 |
US2005211469(A1) |
申请公布日期 |
2005.09.29 |
申请号 |
US20040918698 |
申请日期 |
2004.08.16 |
申请人 |
VECTOR MAGNETICS, LLC |
发明人 |
KUCKES ARTHUR F.;TEER JOHN |
分类号 |
E21B7/04;E21B47/02;E21B47/022;E21B47/024;E21D9/00;E21D9/04;(IPC1-7):E21B47/02 |
主分类号 |
E21B7/04 |
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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