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Method for datumizing seismic data by forward modeling
Method for datumizing seismic data by forward modeling
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机译:通过正演模拟地震数据的方法
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摘要
Disclosed is a method for processing geophysical data that have been gathered over irregular topography. According to the method, a datum is established that lies above the highest topographic peak. The data are time-shifted from the surface to the datum using a replacement velocity that is an extrapolation of the underlying formation velocity. The wavefields beneath the surface are forwardly modeled using a modeling velocity substantially equal to zero. Between the surface and the datum, the wavefields are upwardly modeled using the replacement velocity. IMAGE
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