Method for providing uniform subsurface coverage in the presence

Details Method for providing uniform subsurface coverage in the presence Method for providing uniform subsurface coverage in the presence

1997-03-28

1998-02-10

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 21, 367 56, 364421, G01V 120, G01V 136

Patent

active

057176558

ABSTRACT:
A method for minimizing non-uniform insonification of subsurface formations in the presence of steep dips when advancing a swath of elongated parallel seismic streamer cables along a line of survey. A first acoustic source is stationed at the leading end of the swath and a second source is stationed at the trailing end of the swath. The sources are activated in alternate cycles at preselected timed intervals to provide down-dip and up-dip seismic data sets. The data sets are processed and merged to eliminate objectionable shadow zones.

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Vermeer, Gijs J.O., Seismic Acquisition 3: 3-D Data Acquisition, 64th Annual Meeting of the Society of Exploration Geophysicists, published in Expanded Abstracts, pp. 906-909, 1994.
Egan, Mark S.; Dingwall, Ken; and Kapoor, Jerry; Shooting direction: A 3-D marine survey design issue, The Leading Edge, Nov. 1991, pp. 37-41.

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