Vibratory seismic source for generating combined compressional a

Details Vibratory seismic source for generating combined compressional a Vibratory seismic source for generating combined compressional a

1986-02-06

1987-04-28

Jordan, Charles T.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181121, 181114, 367189, G01V 102

Patent

active

046606750

ABSTRACT:
A vibratory seismic surface source includes a single vibrating mass, supported above and independently of an earth-contacting base plate. Means are provided for varying the inclination and azimuth of the vibrator axis. After the vibrator is oriented in any desired direction, it is then lowered along its vibratory axis so that it bears directly against the hemispherically concave upper surface of the base plate. When the vibrator is actuated in this position of contact, any desired combination of compressional and shear waves, both SH and SV type, may be generated and recorded simultaneously at a point on the earth's surface remote from the source.

REFERENCES:
patent: 3282372 (1966-11-01), Brown et al.
patent: 4059820 (1977-11-01), Turpening
patent: 4316521 (1982-02-01), Chelminski
patent: 4321981 (1982-03-01), Waters

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