Method of seismic exploration

Details Method of seismic exploration Method of seismic exploration

1978-06-16

1981-10-06

Birmiel, Howard A.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 41, 367 49, 367 63, 367189, G01V 102, G01V 128

Patent

active

042939356

ABSTRACT:
Seismic exploration on land and on ocean beds is performed by emitting vibrational acoustic signals of long time-duration within a desired frequency spectrum at one or a number of points, the signals corresponding to the waves received from the reflectors being then processed. The method further consists in forming the complex spectrum of the received signal corresponding to the emitted signal in respect of each frequency band, in forming the complex spectrum of a reference of the emitted signal in respect of each frequency band and in dividing the complex spectrum of the received signal by the complex spectrum of the reference of the emitted signal, at least an external portion of each complex spectrum being eliminated in the case of each complex spectrum.

REFERENCES:
patent: 2696891 (1954-12-01), Neufeld
patent: 3259878 (1966-07-01), Mifsud
patent: 3274541 (1966-09-01), Embree
patent: 3284769 (1966-11-01), Skelton
patent: 3292144 (1966-12-01), Lee et al.
patent: 3332512 (1967-07-01), Sundt
patent: 3731268 (1973-05-01), Landrum, Jr.
patent: 4004267 (1977-01-01), Mayne
patent: 4037190 (1977-07-01), Martin

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