Generation of seismic sources

Details Generation of seismic sources Generation of seismic sources

1980-03-26

1982-05-04

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

367146, 181115, G01V 1137

Patent

active

043278132

ABSTRACT:
The invention relates to the creation of a shock wave within a mass of water by implosion of a vapor bubble.
According to the invention, a controlled quantity of liquid water under pressure and which is super-heated relative to the mass of water is released quickly, at a predetermined point of the mass of water, the water advantageously being in the lower vicinity of the left-hand part of the saturation curve (portion B-D). The water liberated in this way expands and vaporizes at least partially in the form of a single bubble, which then implodes suddenly.
Application as a marine seismic source.

REFERENCES:
patent: 368272 (1887-08-01), Batchelder
patent: 515624 (1894-02-01), Stewart
patent: 3052615 (1962-09-01), Johns et al.
patent: 3369217 (1968-02-01), Luehrmann et al.
patent: 3712408 (1973-01-01), Muntz
patent: 3858171 (1974-12-01), Pauletich
patent: 3859954 (1975-01-01), Pauletich
patent: 3912042 (1975-10-01), Pauletich
patent: 3944019 (1976-03-01), Pauletich
patent: 4015684 (1977-04-01), Pauletich
Osborne et al., "The Acoustical Concomitants of Cavitation and Boiling, Produced by a Hot Wire, I", 1/47, pp. 13-29, Journ. Acoust. Soc. of America, vol. 19, #1.

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