Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent
1972-09-06
1976-05-25
Farley, Richard A.
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
181401, G01V 102
Patent
active
039586618
ABSTRACT:
An apparatus for generating seismic waves includes an elongated closed tube with a piston in its internal cavity. The piston is carried by a piston rod which extends through the top of the tube, and includes a fuel inlet and exhaust channel. The piston also carries a second tube to define a combustion chamber therein, and a fuel conducting tube extending along the length of the piston rod and beyond the piston to approximately medially within the second tube. When a combustion fuel is introduced to within the combustion chamber and ignited, a force is applied to the piston in one direction and an opposite force is applied to the tube moving the tube with respect to the piston a distance approximately three times the diameter of the piston.
A method for generating seismic waves is carried out with the apparatus of the invention and includes the steps of suspending a weight above a surface below which the seismic waves are to be introduced and applying a combustion force to the suspended weigh to accelerate it onto the surface to generate the seismic waves.
REFERENCES:
patent: 2993554 (1961-07-01), Towell et al.
patent: 3215223 (1965-11-01), Kirby
patent: 3368642 (1968-02-01), Kilmer
patent: R26893 (1970-05-01), McCollum
Dransfield Clifford D.
Wise Phillip W.
Atlantic Richfield Company
Betz Robert M.
Farley Richard A.
Montone Gregory E.
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