Patent ID: 8078406
Filing Date: 2011-12-13
Classification: G01V

Abstract:
1. A method for processing seismic data, comprising: plotting on a graph one or more actual times at which one or more seismograms are received by a seismic receiver during a seismic survey; plotting a travel-time curve on the graph, wherein the travel-time curve represents one or more approximate times at which the seismograms are received by the seismic receiver; determining a residual static shift for at least one seismogram, wherein the residual static shift represents a difference between an actual time at which the at least one seismogram is received by the seismic receiver and a time on the travel-time curve that corresponds to the actual time; and using the residual static shift to estimate a time shift correction to correct a timing error in the time indicated by the travel-time curve.