Procedure for seismic surveying

Details Procedure for seismic surveying Procedure for seismic surveying

1988-12-09

1989-09-26

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

181110, G01V 138

Patent

active

048706248

ABSTRACT:
A procedure for seismically surveying a region, in particular a marine region, wherein objects such as drilling platforms (1,2,3) prevent surveying by conventional seismic means such as towed streamers. In the invention, the total region first divided into sub-regions (5,6,7) wherein receiver chains (4) are stationarily mounted between two of the objects. A sound transmitter is the moved relative to the chain of receivers along a grid as the transmitter is repeatedly, periodically activated. Data collected by the receivers are recorded for each sub-region and the completely surveyed sub-regions are combined by grid transformation to construct a uniform three-dimensional data volume.

REFERENCES:
patent: 3786408 (1974-01-01), Jenkinson et al.
F. Kirchheimer, Transformation of Seismic 3D Data by Separated Sinc Interpolation, 1986.
Prakla-Seismos GmbH, Shallow Water Geophysical Surveys, pp. 2-23, 48th EAEG Meeting, 1986, Oostende.
GECO brochure (Geophysical Company of Norway A.S.), undated.

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