Method for wave equation velocity replacement of the low-velocit

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

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367 36, 364421, G01V 128

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active

H00015296

ABSTRACT:
A method for correcting seismic data for the effects of the low-velocity-layer. According to the method, estimates of the seismic velocity in the low-velocity-layer and the depth of the low-velocity-layer are used to extrapolate the seismic data to simulated source and receiver positions located at the base of the low-velocity-layer. The data are then extrapolated to an arbitrary reference datum using a selected replacement velocity. The principles of wave equation datuming are used for these extrapolations.

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