发明名称 |
MULTIPLE MAGNETIC SENSOR RANGING METHOD AND SYSTEM |
摘要 |
A system and methods for drilling a well in an orientation with respect to an existing well are provided. Specifically, one method in accordance with present embodiments includes producing a magnetic field with a magnetic field source positioned in the first well, producing a first output from a first magnetic field sensor subsystem for sensing directional magnetic field components, and producing a second output from a second magnetic field sensor subsystem for sensing directional magnetic field components. The first and second magnetic field sensor subsystems are positioned a distance apart from one another within the second well. Further, the first and second outputs are responsive to the magnetic field produced by the magnetic field source. |
申请公布号 |
WO2009151867(A2) |
申请公布日期 |
2009.12.17 |
申请号 |
WO2009US44083 |
申请日期 |
2009.05.15 |
申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDING LIMITED;CLARK, BRIAN |
发明人 |
CLARK, BRIAN |
分类号 |
G01V3/26;E21B47/00;G01B7/14 |
主分类号 |
G01V3/26 |
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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