Patent ID: 8326543
Filing Date: 2012-12-04
Classification: G01V

Abstract:
1. A computer-implemented method of attenuating multiply reflected, surface-related seismic waves, wherein the method is implemented in a computer system comprising one or more processors configured to execute one or more computer program modules, the method comprising: obtaining, by the one or more processors, a beam dataset derived from data related to a geological volume where azimuth information is an attribute, wherein the beam dataset includes information describing properties of a plurality of beams of seismic data through the geological volume, and wherein the properties of the plurality of beams described by the beam dataset include azimuth; selecting, by the one or more processors, an input beam from the plurality of beams for which properties are described by the beam dataset; determining, by the one or more processors, properties of a pegleg arrival corresponding to the input beam, wherein the pegleg arrival is determined based in part on the information in the beam dataset describing properties of the input beam, including the azimuth of the input beam, and wherein the properties of the pegleg arrival determined include the azimuth of the pegleg arrival; identifying, by the one or more processors, a primary beam that corresponds to the pegleg arrival, wherein identifying the primary beam comprises identifying a beam described by the beam dataset having properties that correspond to the determined properties of the pegleg arrival, including a beam azimuth that corresponds to the beam azimuth of the pegleg arrival; and adjusting, by the one or more processors, information in the beam dataset describing properties of the input beam to remove one or more multiple arrivals associated with the primary beam from the input beam.