Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent
1978-07-21
1980-03-18
Moskowitz, Nelson
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
367147, G01V 138, G01V 110
Patent
active
041934725
ABSTRACT:
An open-ended seismic source for use in a liquid medium such as water is disclosed. The source includes a source of explosive gas, a firing chamber connected to the source, a capacitor discharge ignition system connected to the firing chamber for igniting the gas in the firing chamber, a barrel connected to the firing chamber, defining an explosion chamber and having an outlet at its lower end, a plurality of baffle plates fixed in the barrel near the outlet for permitting the exploded gas to enter the medium and for retarding the entry of the medium into the barrel, and a reaction plate attached to the barrel and disposed below the outlet so that the exploded gas entering the medium impinges on the plate and the recoil of the barrel is reduced.
REFERENCES:
patent: 2994397 (1961-08-01), Huckaboy
patent: 3048816 (1962-08-01), Lubrow
patent: 3256952 (1966-06-01), Cuder et al.
patent: 3397755 (1968-08-01), Loper
patent: 3588801 (1971-06-01), Leonard
patent: 3951231 (1976-04-01), Leonard
Cook, "Report On a Visit to the . . . Grand Banks", 6/13/65, 9 pages, Imperial Oil Limited Report.
Bayhi, "Offshore Demonstration of GSI Gas Exploder", 3/1/66, 5 pages, Exxon Prod. Res. memorandum.
Exxon Production Research Company
Glober George E.
Moskowitz Nelson
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