Internal bubble-suppression method and apparatus

Details Internal bubble-suppression method and apparatus Internal bubble-suppression method and apparatus

1988-03-01

1990-05-01

Steinberger, Brian S.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181120, 367144, G01V 104

Patent

active

049210688

ABSTRACT:
The present invention comprises an apparatus and method for producing a high resolution acoustic signal from a single point source while achieving a commercially acceptable secondary bubble suppression. More specifically, the present invention comprises first and second explosive generators which sequentially create two explosions or one explosion and injection, within the body of water; said first explosion producing within the body of water a powerful acoustic pulse in an expanding cavity of very low pressure, said second explosion or injection establishing hydrostatic pressure within the cavity about the same time the volume of the cavity reaches its maximum volume, thereby substantially reducing the secondary pressure pulses.

REFERENCES:
patent: 3601216 (1971-08-01), Mott-Smith
patent: 3923122 (1975-12-01), Itria
patent: 4382486 (1983-05-01), Ruehle
patent: 4577723 (1986-03-01), Savit
patent: 4727956 (1988-03-01), Huizer
patent: 4735281 (1988-04-01), Pascouet

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