Inversion for Thomsen?s anisotropy parameters

Abstract

In order to extend seismic processing techniques to anisotropic media, it is required that we have a measure of the different anisotropy parameters. The purpose of this study is to estimate the Thomsen?s parameters, e and d, for transversely isotropic (TI) media using the shifted hyperbola NMO equation by Castle. A non-linear inversion technique has been developed to invert the Castle?s Shifted Hyperbola NMO Equation for obtaining the shift parameter. This method will be used for the estimation of these parameters over the Blackfoot field in western Canada.