Communications – electrical: acoustic wave systems and devices – Seismic prospecting
Reexamination Certificate
2006-05-09
2006-05-09
Keith, Jack (Department: 3663)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
C367S015000, C367S025000, C367S036000, C367S037000, C324S323000, C324S353000, C342S022000
Reexamination Certificate
active
07042801
ABSTRACT:
Methods are disclosed employing seismic waves having infrasonic frequencies in the range of about 0.1–20 Hz for generating electromagnetic waves of similar infrasonic frequency in hydrocarbon bearing subterranean formations located at depths up to about 5000 meters, said electromagnetic waves having sufficient voltage amplitudes for detection at the earth's surface. Also disclosed are seismic sources capable of generating infrasonic seismic waves of sufficient amplitude for generating electromagnetic waves in hydrocarbon bearing formations at depths up to 5000 meters, said electromagnetic waves having voltage amplitudes sufficient for detection at the earth's surface.
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Hughes Scott A.
Keith Jack
Lee Samuel S.
SeismoElectric Soundings, Inc.
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