Seismic recording method using separate recording units for...

Details Seismic recording method using separate recording units for... Seismic recording method using separate recording units for...

G - Physics

01

V

349/12, 349/20

G01V 1/22 (2006.01) G01V 1/20 (2006.01) G01V 1/24 (2006.01) G01V 1/36 (2006.01)

Patent

CA 1076690

ABSTRACT OF THE DISCLOSURE A system of land (field) seismic exploration which eliminates the requirement for a main land cable to transmit seismic data from the sensors to a central recorder 18 disclosed. The system includes: a seismic source for generating seismic energy; a data acquisition unit for collecting seismic information; and a master control and collating unit for transmitting coded identification and command signals to the source and data acquisition units and collating the data from the individual tapes of the data acquisition units. Each data acquisition unit includes its own controller, sensor group, analog to digital converter, signal conditioner data recorder, and radio frequency receiver. The analog to digital converter includes a plurality of bounded amplifiers to provide a number of fixed gain stages operative throughout a 120 db dynamic range. The signal conditioner includes a large scale integrated metal oxide semiconductor chip processor for performing desired seismic data processing functions.

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