发明名称 |
REDUCING CONDUCTIVE CASING EFFECT IN TRANSIENT CASED-HOLE RESISTIVITY LOGGING |
摘要 |
A first broadband magnetic field is induced at a first transmitter position in a well bore drilled through a formation. A first formation magnetic field induced by the first broadband magnetic field is detected at a first receiver position. A second formation magnetic field induced by the first broadband magnetic field is detected at a second receiver position. A second broadband magnetic field is induced at a second transmitter position in the well bore. A third formation magnetic field induced by the second broadband magnetic field is detected at the first receiver position. A fourth formation magnetic field induced by the second broadband magnetic field is detected at the second receiver position. A formation property is computed using a function of the first, second, third, and fourth formation magnetic fields, wherein the function reduces the effect of a casing on the computation of the formation property. |
申请公布号 |
EP2923223(A1) |
申请公布日期 |
2015.09.30 |
申请号 |
EP20120888637 |
申请日期 |
2012.11.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WU, DAGANG;BITTAR, MICHAEL, S. |
分类号 |
G01V1/40;G01V3/18;G01V3/28 |
主分类号 |
G01V1/40 |
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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