Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent
1981-04-13
1982-05-04
Moskowitz, Nelson
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
367 75, 367 1, 181401, 73667, 73672, G01V 1053, G01V 1153
Patent
active
043278140
ABSTRACT:
A rotating eccentric weight apparatus and method for generating coded shear wave signals for use in seismic exploration. The apparatus includes a rotatable eccentric and a position sensor capable of detecting each instant that the eccentric passes a particular angular position about its axis of rotation and generating a code signal for use in correlating the raw seismic data obtained. In one embodiment, the apparatus includes an outrigger shovel which transmits a sinusoidal shear wave signal generated by the rotating eccentric while the rest of the apparatus is caused to alternately decouple from and impact against the earth surface to transmit a coded train of pressure wave impulses into the earth.
REFERENCES:
patent: 2745507 (1956-01-01), Bodine
patent: 2821477 (1958-01-01), Hanggi
patent: 2849076 (1958-08-01), Kaufman
patent: 2933300 (1960-07-01), McCollum
patent: 3185250 (1965-05-01), Glazier
patent: 3221297 (1965-11-01), Smith et al.
patent: 3229784 (1966-01-01), Lyons et al.
patent: 3244252 (1966-04-01), Burns
patent: 3286783 (1966-11-01), Cherry et al.
patent: 3302164 (1967-01-01), Waters et al.
patent: 3326320 (1967-01-01), Forester
patent: 3372770 (1968-03-01), Clynch
patent: 3416632 (1968-12-01), Bodine
patent: 3523277 (1970-08-01), Landrum
patent: 3583521 (1971-06-01), Anstey
patent: 3622970 (1971-11-01), Sayous et al.
patent: 3697938 (1972-10-01), Taner
patent: 3698009 (1972-10-01), Barbier
patent: 3835954 (1974-09-01), Layotte
patent: 4011924 (1977-03-01), Barbier
patent: 4037190 (1977-07-01), Martin
patent: 4038631 (1977-07-01), Murphy
patent: 4058791 (1977-11-01), Martin et al.
patent: 4059820 (1977-11-01), Turpening
patent: 4064964 (1977-12-01), Norden
patent: 4143737 (1979-03-01), Erich
patent: 4219096 (1980-08-01), Airhart
patent: 4234053 (1980-11-01), Erich
Heiland, C.A., Geophysical Exploration, Prentice-Hall, Inc., New York, N.Y., 1940, pp. 914-928.
Cochran, M. D., "Seismic Signal Detection Using Sign Bits," Geophysics, vol. 38, 1973, p. 163.
Farrell Daniel R.
Moskowitz Nelson
Sandford Dean
Union Oil Company of California
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