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Method for aquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the source(s)

  • US 20100008184A1
  • Filed: 06/02/2009
  • Published: 01/14/2010
  • Est. Priority Date: 06/02/2008
  • Status: Active Grant
First Claim
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1. A method for acquisition and processing of marine seismic signals to extract up-going and down- going wave-fields from a seismic energy source, the method comprising:

  • deploying at least two marine seismic energy sources at different depths in a body of water and at substantially a same longitudinal position from a seismic vessel;

    actuating each of the seismic energy sources in a plurality of firing sequences, each sequence having a known, different time delay between firing each source and a start of seismic signal recording;

    recording seismic signals corresponding to each firing sequence;

    extracting seismic energy corresponding to each of the sources from the recorded seismic signals; and

    ;

    extracting at least one of an up-going and a down-going wave-field using the extracted seismic energy therefrom.

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