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HYBRID IMAGE OF EARTH FORMATION BASED ON TRANSIENT ELECTROMAGNETC MEASUREMENTS
HYBRID IMAGE OF EARTH FORMATION BASED ON TRANSIENT ELECTROMAGNETC MEASUREMENTS
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机译:基于瞬变电磁测量的地球形成混合图像
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摘要
A method for imaging an earth formation includes estimating an apparent resistivity (AR) value and an apparent distance to a bedding plane (AD2B) value for each of a plurality of samples derived from measurements of a time-dependent transient electromagnetic signal, estimating an inversion-based resistivity value (IB-R) and an inversion-based distance to a bedding plane (IB-D2B) value at a first sample of each consecutive depth interval, wherein each depth interval includes a plurality of consecutive samples, and determining a difference between apparent values and the corresponding inversion-based values. The method further includes generating an image of the earth formation using the AR and AD2B values for the entire interval if the difference is less than a threshold value and generating an image of the earth formation using IB-R and IB-D2B values for the entire interval if the difference is greater than the threshold value.
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