Method of compensating seismic data for effects of frequency dep

Details Method of compensating seismic data for effects of frequency dep Method of compensating seismic data for effects of frequency dep

1980-05-13

1982-07-13

Birmiel, Howard A.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 41, 367 46, 367 47, 367 65, G01V 137

Patent

active

043398103

ABSTRACT:
In one exemplar embodiment, an improved method is provided for compensating received propagated seismic signals for the absorption by the earth of all frequencies of a vibrator source signal. The received seismic data is crosscorrelated with the original source signal and a Fourier amplitude spectral analysis obtained. Then an attenuation function is determined by the attenuation exhibited by the spectrum. The quantified attenuation function is then applied as a compensation function to the original source signal to obtain a "weighted" vibrator sweep signal that is then used in crosscorrelating with the received seismic data to compensate for the frequency dependent attenuation in the earth of received propagated seismic data.

REFERENCES:
patent: 2808577 (1957-10-01), Crawford et al.
patent: 3582873 (1971-06-01), George, Jr.
patent: 3716829 (1973-02-01), Ruehle

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