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Method and system for acquiring marine seismic data using multiple seismic sources

CAFC
  • US 6,906,981 B2
  • Filed: 07/17/2002
  • Issued: 06/14/2005
  • Est. Priority Date: 07/17/2002
  • Status: Expired due to Term
First Claim
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1. A method for seismic surveying, comprising:

  • towing a first seismic energy source and at least one seismic sensor system;

    towing a second seismic energy source at a selected distance from the first seismic energy source; and

    actuating the first seismic energy source and the second seismic energy source in a plurality of firing sequences, each of the firing sequences including firing of the first source and the second source and recording signals generated by the at least one seismic sensor system, a time interval between firing the first source and the second source varied between successive ones of the firing sequences, the times of firing the first and second source indexed so as to enable separate identification of seismic events originating from the first source and seismic events originating from the second source in detected seismic signals.

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