发明名称 |
REAL-TIME FORMATION ANISOTROPY AND DIP EVALUATION USING TRI-AXIAL INDUCTION MEASUREMENTS |
摘要 |
The present disclosure relates to a method to determine a formation property of a subsurface formation. A downhole logging tool having two or more tri-axial antennas is provided and used to obtain azimuthally sensitive data. Borehole correction is performed on the obtained data and a ZD-inversion is performed on the borehole corrected data for all antenna spacing groups. A formation indicator flag is determined and, depending on the determined formation indicator flag, a 1D-axial inversion and/or a 1D-radial inversion is performed over selected zones, or neither is performed. The best ZD-inversion results are selected and the 1D-axial inversion results and/or the 1D-radial inversion results, if any, are combined with the selected best ZD- inversion results to form a composite inversion result. The formation property of the subsurface formation is determined using the composite inversion result. |
申请公布号 |
CA2787149(A1) |
申请公布日期 |
2011.07.28 |
申请号 |
CA20112787149 |
申请日期 |
2011.01.21 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
WU, PETER T.;BARBER, THOMAS D. |
分类号 |
G01V3/18;E21B47/00;G01V5/04 |
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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