Method of marine reflection-type seismic exploration

Details Method of marine reflection-type seismic exploration Method of marine reflection-type seismic exploration

1974-06-10

1976-04-20

Tubbesing, T. H.

Communications: electrical

Selective

Having indication or alarm

340 155MC, 181112, G01V 138

Patent

active

039522814

ABSTRACT:
Seismic exploration method applicable to marine surveys. It involves making a dual spread of detectors which are spaced apart vertically. The signals received at the uppermost spread are delayed sufficiently to make downgoing energy signals in time coincidence with downgoing energy signals from the lower spread. Then the signals from both spreads are algebraically combined so as to cancel downgoing energy signals only.

REFERENCES:
patent: 2757356 (1956-07-01), Haggerty
patent: 3705381 (1972-12-01), Pipkin
patent: 3716830 (1973-02-01), Garcia

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