Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1987-01-28
1989-01-03
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 27, 181105, G01V 140
Patent
active
047962372
ABSTRACT:
Disclosed herein are methods for canceling acoustic reverberations caused when acoustic energy impinges a medium. In one method, a series of positive pulses of acoustic energy are transmitted and the amplitudes of the resulting acoustic reverberations are measured. Negative pulses of acoustic energy are then transmitted having amplitudes equal to the immediately preceding received acoustic reverberation and at a time later than the positive pulses so that the acoustic reverberations are driven to a null.
REFERENCES:
patent: 3326320 (1967-06-01), Forester
patent: 4382290 (1983-05-01), Havira
patent: 4644508 (1987-02-01), Zachariadis
Hutchens Chriswell G.
Morris Steven A.
Amoco Corporation
Brown Scott H.
Hook F. E.
Lobo Ian J.
Tarcza Thomas H.
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