Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent
1982-11-18
1985-04-16
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
367144, 181107, 181110, 377 20, 377 30, G01V 138, G01V 108
Patent
active
045119996
ABSTRACT:
A gun shot control unit for a seismic exploration system compensates for the inherent delay between the shot command signal and the actual occurrence of the seismic pulse. A digital clock is synchronized with an external source. Timing pulses occurring at a time preceding the timing pulse upon which the occurrence of a seismic pulse is desired are produced by the clock. These timing pulses start a digital counter at a time preceding the desired time of occurrence of the seismic pulse. This counter is adjustable so that the delay which interposes between the timing and the actual occurrence of the seismic pulse can be minimized.
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Bowden Edgar A.
Deline Gordon R.
Koeijmans Gerard D.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
Moskowitz Nelson
Speciale Charles J.
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