Curved-ray replacement dynamics

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

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364421, 367 54, G01V 128

Patent

active

055329764

ABSTRACT:
A method of geophysical prospecting wherein nonhyperbolic distortion is reduced from marine seismic data, or land seismic data over a low seismic velocity layer, is disclosed. The method comprises replacing the seismic velocity of the water or low seismic velocity layer with sediment seismic velocity and using analytic ray tracing to determine a mapping function to correct recorded seismic data for removal of the distortion, which occurs because of the high seismic velocity contrast at the water or low seismic velocity layer.

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