Method of suppressing vibration seismic signal correlation noise

Details Method of suppressing vibration seismic signal correlation noise Method of suppressing vibration seismic signal correlation noise

1985-12-09

1987-11-17

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 41, 367 49, G01V 100

Patent

active

047078120

ABSTRACT:
A method of seismic prospecting in which there is employed conventional upsweep and downsweep and opposed polarity of signals that are being sent into the earth as seismic signals and in which there is introduced a taper at the common frequency at the common time on the respective upsweep and downsweep signals to reduce the most significant part of the correlation noise, yet provide the advantages of each of the methods of using opposite phase polarity, to cancel and using opposite upsweep and downsweep to achieve reduction in the noise experienced, as well as the reduction of the most significant part of the correlation noise that distorts the desired zero-phase Klauder wavelet.

REFERENCES:
patent: 3332511 (1967-07-01), Silverman
patent: 3671932 (1972-06-01), Holzman
patent: 3885225 (1975-05-01), Anstey
patent: 3984805 (1976-10-01), Silverman
patent: 4034333 (1977-07-01), Cunningham
patent: 4159463 (1979-06-01), Silverman
patent: 4168485 (1979-09-01), Payton
"Non-Linear Vibrator Sweeps", Geophysics: The Leading Edge of Exploration, Dec. 1985.
"Simultaneous Recording of Several Vibroseis Lines" Robert Garotta, 1983, 53rd Seg. Meeting, Las Vegas.

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