Charging system for seismic gas exploder

Details Charging system for seismic gas exploder Charging system for seismic gas exploder

1981-01-05

1983-05-24

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

367145, G01V 1108, G01V 138

Patent

active

043846327

ABSTRACT:
Oxygen and propane are supplied to the combustion chamber of a marine seismic gas exploder from a pair of pressure regulated gas charging cylinders. Ignition of the resultant explosive gas mixture drives a piston connected with means for creating an acoustic disturbance in the water. The outputs from the charging cylinders are fed simultaneously to a mixing manifold connected to a large orifice communicating with the combustion chamber.
The ratio of gases in the resultant mixture is automatically determined by the relative volumes and pressures of the charging cylinders, which may be precisely regulated by adjustment of pistons movable within such cylinders and by gas pressure regulation. To safeguard against too rapid voiding of a small volume charging cylinder, voiding of the larger volume cylinder may be initiated first with the aid of a choke downstream of the manifold. This will create an artificial back pressure in the distribution system.

REFERENCES:
patent: 1500243 (1924-07-01), Hammond
patent: 2846019 (1958-08-01), Long
patent: 2994397 (1961-08-01), Huckaboy
patent: 3022852 (1962-02-01), Paney
patent: 3048816 (1962-08-01), Lubnow
patent: 3072829 (1963-01-01), McDonal
patent: 3382946 (1968-05-01), Smith et al.
patent: 4007804 (1977-02-01), Hardison et al.
patent: 4016952 (1977-04-01), Reed et al.

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