Abstract：Walkaway VSP can obtain high-quality P-waves, and PS-waves, interval velocity, attenuation, anisotropy, and other geological information. We discuss in this paper a basic flow and the key steps of Walkaway VSP data processing with some approaches provided by GeoEast, including high-precision first-break picking, noise attenuation, polarization analysis, velocity inversion and modelbuilding, amplitude compensation, wavefield separation, and migration. Very good results have been achieved, and P-and converted-wave imaging of Walkaway VSP has high consistency with surface seismic data in horizon calibration.
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