Patent ID: 7724608

Claim:
A method for use in connection with seismic exploration, comprising: using an array of seismic receivers, obtaining a plurality of seismic signals associated with seismic information; selecting a subterranean point of interest; using a processing system, adjusting each of said signals to focus on data associated with said point of interest to produces a plurality of adjusted seismic signals, wherein said adjusting each of said signals comprises time delaying at least a portion of said signals such that ray paths between corresponding ones of said seismic receivers and said point of interest are substantially equal, and wherein said time delaying comprises calculating distances between said receivers along their respective ray paths and a position on a hypothetical spherical surface, wherein said point of interest is a center of said spherical surface and wherein said time delay for each said signal is based on said distances; and using said processing system, summing said adjusted seismic signals, wherein a sum of said adjusted seismic signals is indicative of a reflection value for said subterranean point of interest.