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Seismic acquisition system with decentralized processing means

  • US 5,550,787 A
  • Filed: 02/08/1994
  • Issued: 08/27/1996
  • Est. Priority Date: 06/11/1992
  • Status: Expired due to Term
First Claim
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1. A seismic acquisition system with decentralized processing capacity for reducing a volume of data to be transmitted with a communication link to at least one control unit and centralized therein comprising:

  • at least one acquisition device for collecting the data in response to seismic signals received by an array of seismic receivers positioned on a field and transmitted to the at least one acquisition device, the at least one acquisition device including at least one acquisition chain for digitizing signals received by at least one of the seismic receivers and a control set for controlling acquisition and storage of signals, the control set including a processor and a digital signal processor controlled by the processor, the digital signal processor being programmed for performing processing operations on the seismic signals before transmission thereof to the control unit and for performing quality control on each seismic receiver and each acquisition chain and functioning according to two methods of operation, one method of operation being an active mode for performing the data processing operations and the quality control and the other operation being a standby mode having a lower power consumption than power consumption during the active mode.

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