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Method for separation of a plurality of vibratory seismic energy source signals

  • US 5,822,269 A
  • Filed: 11/13/1995
  • Issued: 10/13/1998
  • Est. Priority Date: 11/13/1995
  • Status: Expired due to Term
First Claim
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1. A method for separating vibratory source data comprising the steps of:

  • generating seismic energy having a different phase for each of the vibratory sources by varying the phase of vibratory sources for each sweep according to a first pattern for odd numbered sources and a second pattern for even numbered sources, each pattern beginning with a zero phase shift, the zero phase shift occurring at the sweep number corresponding to the position number of the source;

    detecting-said seismic energy after said seismic energy has been reflected by a subsurface interface; and

    identifying said detected reflected seismic energy according to its phase characteristic for each sweep.

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