Velocity analysis for transversely isotropic media
- Colorado School of Mines, Golden, CO (United States). Center for Wave Phenomena
The main difficulty in extending seismic processing to anisotropic media is the recovery of anisotropic velocity fields from surface reflection data. The authors suggest carrying out velocity analysis for transversely isotropic (TI) media by inverting the dependence of P-wave moveout velocities on the ray parameter. The inversion technique is based on the exact analytic equation for the normal-moveout (NMO) velocity for dipping reflectors in anisotropic media. Generalization of the single-layer NMO equation to layer anisotropic media with a dipping reflector provides a basis for extending anisotropic velocity analysis to vertically inhomogeneous media. They demonstrate how the influence of a stratified anisotropic overburden on moveout velocity can be stripped through a Dix-type differentiation procedure.
- DOE Contract Number:
- FG02-89ER14079
- OSTI ID:
- 118792
- Journal Information:
- Geophysics, Journal Name: Geophysics Journal Issue: 5 Vol. 60; ISSN 0016-8033; ISSN GPYSA7
- Country of Publication:
- United States
- Language:
- English
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