Velocity analysis using nonhyperbolic move-out in anisotropic media of arbitrary symmetry: synthetic and field data studies

摘要

A robust method for estimating the interval parameters (i.e. the normal move-out velocity V_NMO and the anisotropy parameter η) of horizontally layered transversely isotropic medic from reflected P-waves data has been recently proposed by Alkhalifah (1997) Based on move-out equation form Tsvankin and Thomsen (1994). The method, tested on synthetic and field data, is based first on Semblance analysis on nonhyberbolic (i.e. long spread) move-out For the estimation of the effective parameters, and then on a layer Stripping process.