Method and apparatus for generating seismic waves

Details Method and apparatus for generating seismic waves Method and apparatus for generating seismic waves

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

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