Seismic signal acquisition method and device

Details Seismic signal acquisition method and device Seismic signal acquisition method and device

1994-09-30

1996-10-08

Carone, Michael J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 67, 34087011, 34087015, 34087018, G01V 100, G08C 1500

Patent

active

055638473

ABSTRACT:
The arrangement in the field of seismic emission-reception system changes as it progrsses along the profile explored, which modifies the respective distances between the source of seismic signals (S) and each of the siesmic receivers (Ri). In order to take account thereof, each of the acquisition boxes (Bi) used in the field for amplifying, digitizing and storing the siesmic signals received during each emission-reception cycle (or possibly a central station) is provided with a processor for determining automatically the gain to be assigned to the various amplifiers from all of the signals acquired and with selection rules taking into account the level of the signals and their evolution observed over several successive emission-reception cycles. The invention has an application in decentralized automatic control of acquisition devices.

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patent: 4449120 (1984-05-01), Rialan et al.
patent: 4610006 (1986-09-01), MacDonald
patent: 4616349 (1986-10-01), Shirley
patent: 4636993 (1987-01-01), Lumley et al.
patent: 4779055 (1988-10-01), Beauducel et al.
patent: 4901289 (1990-02-01), Cretin et al.

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