发明名称 |
ELECTROACOUSTIC METHOD OF CONDUCTIVITY MEASUREMENT THROUGH CASING |
摘要 |
The present disclosure relates to methods and apparatuses for evaluating a porous earth formation. The method may include estimating a value of at least one parameter of interest of the earth formation using a signal indicative of acoustic waves generated at a metallic surface (200) in communication with the earth formation when the metallic surface (200) is exposed to a constant magnetic field (250) normal to the metallic surface (200) and a harmonic magnetic field (260) along the metallic surface. The signal may be generated by a sensor responsive to the acoustic waves. The apparatus may include a first magnetic source (230) configured to generate a constant magnetic field (250), a second magnetic source (240) configured to generate a harmonic magnetic field (260), and a sensor (220) configured to generate a signal in response to acoustic waves. |
申请公布号 |
WO2013051955(A1) |
申请公布日期 |
2013.04.11 |
申请号 |
WO2011RU00769 |
申请日期 |
2011.10.03 |
申请人 |
BAKER HUGHES INCORPORATED;DOROVSKY, VITALY NIKOLAEVICH |
发明人 |
DOROVSKY, VITALY NIKOLAEVICH |
分类号 |
G01V1/44;G01V3/26 |
主分类号 |
G01V1/44 |
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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