CPC G01V 1/306 (2013.01) [G01V 1/325 (2013.01); G01V 1/345 (2013.01); G01V 1/3808 (2013.01); G01V 2210/3246 (2013.01); G01V 2210/44 (2013.01); G01V 2210/45 (2013.01)] | 17 Claims |
1. In a process for generating an image of a subterranean formation from seismic data recorded in a marine survey of a subterranean formation, the improvement comprising:
generating an up-going pressure wavefield from a pressure wavefield and a vertical velocity wavefield recorded in the marine survey;
generating a downgoing vertical acceleration wavefield of random sweeps with orthogonal signatures created by contemporaneously activated marine vibrator passing over the subterranean formation;
deconvolving the downgoing vertical acceleration wavefield from the up-going pressure wavefield to generate a subsurface reflectivity wavefield; and
generating an image of the subterranean formation on a display based on the subsurface reflectivity wavefield, thereby increasing resolution of the image with reduced contamination from source wavefield effects.
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