Vibrator and processing systems for vibratory seismic operations

Details Vibrator and processing systems for vibratory seismic operations Vibrator and processing systems for vibratory seismic operations

1975-09-29

1977-12-20

Birmiel, Howard A.

Communications: electrical

Selective

Having electron beam device

181119, 340 17R, 340 155DP, 364421, G01V 114

Patent

active

040644812

ABSTRACT:
Method and apparatus for carrying out vibratory seismic operations and processing seismic records, involving generating a square wave analog sweep signal for driving a vibrator, generating a square wave analog, or 1 bit digitized transmitted signal, digitizing the received signal to 1 bit, and correlating the 1 bit digitized received signal with the 1 bit digitized transmitted signal, and stacking a plurality of such 1 bit correlograms. Simple logic means are disclosed for performing a 1 bit .times. 1 bit correlation. Means are disclosed for generating a square wave analog sweep signal.

REFERENCES:
patent: 2920306 (1960-01-01), Feagin et al.
patent: 3326320 (1967-06-01), Forester
patent: 3789951 (1974-02-01), Silverman
patent: 3883725 (1975-05-01), Fort et al.
"The Pulsed Vibrator as a Seismic Source", Evison, Geophysical Prospecting, vol. 5, No. 4, Dec. 1957.

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