Patent ID: 7328109

Claim:
A method of processing seismic data comprising the steps of: transforming seismic data from a first domain in which the seismic data contain a signal of interest and coherent noise to a second domain thereby to transform at least part of the coherent noise to incoherent noise; filtering at least a first portion of the seismic data in the second domain using a multichannel interference canceller, wherein the seismic data in the second domain comprise a gather of seismic data traces, and comprising: inputting a first seismic data trace of the gather to the principle channel of the interference canceller as the first portion of the seismic data; inputting a second seismic data trace of the gather to the reference channel of the interference canceller as a reference signal containing signal of interest and incoherent noise; and wherein the interference canceller outputs components of the first portion of the seismic data that are correlated with the reference signal.