Patent ID: 8040754
Filing Date: 2011-10-18
Classification: G01V

Abstract:
1. A method of acquiring and processing full elastic waveform data from a vertical-force source, comprising: a) providing seismic waves into the earth from the vertical-force source, wherein the vertical-force source produces compressional P mode and direct shear modes (SH and SV) in the earth directly at a point of application of the vertical-force source; b) sensing reflections of the seismic waves at multi-component geophones placed along the surface of the earth; and c) processing the reflections of the compressional P mode and direct shear mode seismic waves to generate full elastic waveform data, wherein the reflections of the compressional P mode and direct shear mode seismic waves comprise horizontal shear wave mode data, wherein the processing comprises providing polarity correction to the reflections of the direct SH mode to achieve the horizontal shear wave mode data, wherein the processing comprises segregating direct SH and SV modes from the reflections and separately processing each of the direct SH and SV modes using at least one of a velocity analysis, a static correction, a noise rejection filter, a stacking process and a migration step; and d) generating P and direct shear images based on the processing.