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Abstract

B042 NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic Layers E. Blias* (VSFusion) SUMMARY The NMO inversion problem for HTI medium was solved by Contrera et al (1999) using a technique originally developed by Grechka and Tsvankin (1999). They derived a formula for azimuth-dependent NMO velocity using 2x2 matrices responsible for the ‘interval’ NMO ellipses in each layer. Here I suggest an alternative approach to NMO velocity derivation for the multilayered transverse isotropic model with depth-varying orientation of the symmetry axis. This approach leads to a simplier explicit formula for NMO velocity. Explicit analytical formula for azimuth-dependent NMO velocity

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/content/papers/10.3997/2214-4609.201401497
2007-06-11
2020-06-06
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201401497
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