发明名称 |
METHOD OF DETERMINING ELECTRICAL ANISOTROPY IN A SUBSURFACE FORMATION |
摘要 |
<p>Method of determining electrical anisotropy in a subsurface formation, wherein electromagnetic field data from a multi-offset electromagnetic survey obtained by using an electromagnetic source and a plurality of electromagnetic receivers at varying offset distances from the source is provided. The electromagnetic field data comprises a first set of multi-offset response signals received at each receiver with the electromagnetic source emitting at a first frequency, and at least one additional set of multi-offset response signals received at each receiver with the electromagnetic source emitting at a different frequency. The presence of electrical anisotropy in the subsurface formation is determined using the first and at least one additional sets of multi-offset response signals. This may comprise comparing the first set and the at least one additional set of multi-offset response signals and determining the presence of electrical anisotropy in the subsurface formation from the comparison of the sets of multi-offset response signals.</p> |
申请公布号 |
WO2009006464(A1) |
申请公布日期 |
2009.01.08 |
申请号 |
WO2008US68893 |
申请日期 |
2008.07.01 |
申请人 |
SHELL OIL COMPANY;SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;TOMPKINS, MICHAEL, JOHN |
发明人 |
TOMPKINS, MICHAEL, JOHN |
分类号 |
G01V3/18;G01V3/12;G06F19/00 |
主分类号 |
G01V3/18 |
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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