Seismic data acquisition using designed non-uniform receiver spacing

  • US 10,823,867 B2
  • Filed: 12/20/2019
  • Issued: 11/03/2020
  • Est. Priority Date: 06/09/2010
  • Status: Active Grant
First Claim
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1. A method of characterizing a geological subsurface, the method comprising:

  • designing a seismic survey for a survey area including the geological subsurface by selecting a plurality of positions within the survey area at which to place a plurality of seismic receivers in a deliberately non-uniform arrangement, the plurality of positions including a first position for a first seismic receiver, a second position for a second seismic receiver, and a third position for a third seismic receiver, the plurality of positions of the deliberately non-uniform arrangement selected, such that;

    the first position for the first seismic receiver is not aligned along a first direction with the second position for the second seismic receiver,the first position for the first seismic receiver is not aligned along a second direction with the third position for the third seismic receiver, andthe plurality of positions for the plurality of receivers has a deliberately non-uniform spacing between pairs of adjacent receivers in at least one of the first direction or the second direction; and

    wherein the seismic survey includes the plurality of seismic receivers at the plurality of positions within the survey area, such that seismic data is obtainable based on seismic energy detected by the plurality of seismic receivers according to the seismic survey, the geological subsurface characterized based on the seismic data.

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