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Method for multiple suppression based on phase arrays

  • US 20020114218A1
  • Filed: 11/16/2001
  • Published: 08/22/2002
  • Est. Priority Date: 12/20/2000
  • Status: Active Grant
First Claim
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1_9. ] An apparatus for suppressing multiples in the collection of seismic data in a body of water with an air-water interface, comprising:

  • at least one source positioned in the body of water;

    at least one receiver positioned in the body of water below the air-water interface and near the sources;

    a bubble diffuser positioned in the body of water so that the bubbles emitted by the bubble diffuser are positioned between the receivers and the air-water interface, wherein the emitted bubbles provide high acoustic reflection and substantially suppress specular reflection of seismic waves; and

    a control for activating the bubble diffuser during the collection of seismic data by the sources and receivers.

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