Patent ID: 6832161
Filing Date: 2004-12-14
Classification: G01V,Y02A

Abstract:
A method for attenuating water layer multiples from a gather of seismic data traces, comprising:applying a convolutional operator to the gather of seismic data traces to predict a plurality of receiver side water layer multiples contained in the gather of seismic data traces; adaptively subtracting the receiver side water layer multiples from the gather of seismic data traces to generate a modified version of the gather of seismic data traces; removing a water bottom primary from the modified version of the gather of seismic data traces to create a second modified version of the gather of seismic data traces; applying the convolutional operator to me second modified version of the gather of seismic data traces to predict a plurality of source side water layer multiples contained in the gather of seismic data traces; and adaptively subtracting the receiver side water layer multiples and the source side water layer multiples from the gather of seismic data traces to generate a plurality of primaries contained in the gather of seismic data traces.