SYSTEMS AND METHODS FOR IDENTIFYING S-WAVE REFRACTIONS UTILIZING SUPERVIRTUAL REFRACTION INTERFEROMETRY

摘要

A system and method for identifying S-wave refractions using supervirtual refraction interferometry is disclosed. The method includes receiving a seismic data set from data generated by a plurality of receivers, and calculating crosscorrelations of pairs of common receiver gathers from the seismic data set for each of the receivers. The method includes summing the crosscorrelations associated with each of a plurality of virtual ray paths, calculating a plurality of virtual refraction gathers of the summed crosscorrelations and convolving each of the virtual refraction gathers with the seismic data set. The virtual ray paths are based on each of the receivers functioning as a virtual source. The method includes summing the plurality of convolutions associated with each of the virtual ray paths and calculating a supervirtual refraction gather of the summed convolutions. The method further includes outputting the S-wave refraction from the supervirtual refraction gather.