Method for seismic exploration

Details Method for seismic exploration Method for seismic exploration

1982-09-09

1987-06-23

Cangialosi, Salvatore

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 39, 364421, G01V 100, G01V 128

Patent

active

046758518

ABSTRACT:
Sweeps of seismic signals consisting of pulse trains having a predetermined number of pulses in which the periods or durations of the pulses are randomized and in which the wave shape and relative time displacements of the pulses in different trains provides substantially constant spectral level over a frequency range containing several octaves.

REFERENCES:
patent: 3264606 (1966-08-01), Crook et al.
patent: 3326320 (1967-06-01), Forester
patent: 3811111 (1974-05-01), Berbier et al.
patent: 3956730 (1976-05-01), Barbier
patent: 4011924 (1977-03-01), Barbier
patent: 4168485 (1979-09-01), Payton et al.
patent: 4204278 (1980-05-01), Nelson
Barker et al. "Linear Modelling of Multivariable Systems with Pseudo-Random Binary Input Signals", Automation, vol. 4, pp. 393-416, Pergamon Press (1968).
P. L. Goupilland, "Signal Design in the `Vibroseis` Technique", Geophysics, vol. 41, No. 6, Dec., 1976, pp. 1291-1304.

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