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10.1190/1.1444815
Society of Exploration Geophysicists
Society of Exploration Geophysicists
186
4727382
5981
2021031006471000543
10.1190
20210310T16:01:55Z
20021011T19:52:42Z
452
GEOPHYSICS
GEOPHYSICS
00168033
19422156
07
2000
65
4
An acoustic wave equation for anisotropic media
Tariq
Alkhalifah
The Institute for Geophysical Research, King Abdul Aziz City of Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia.
A wave equation, derived using the acoustic medium assumption for Pwaves in transversely isotropic (TI) media with a vertical symmetry axis (VTI media), yields a good kinematic approximation to the familiar elastic wave equation for VTI media. The wavefield solutions obtained using this VTI acoustic wave equation are free of shear waves, which significantly reduces the computation time compared to the elastic wavefield solutions for exploding‐reflector type applications. From this VTI acoustic wave equation, the eikonal and transport equations that describe the ray theoretical aspects of wave propagation in a TI medium are derived. These equations, based on the acoustic assumption (shear wave velocity = 0), are much simpler than their elastic counterparts, yet they yield an accurate description of traveltimes and geometrical amplitudes. Numerical examples prove the usefulness of this acoustic equation in simulating the kinematic aspects of wave propagation in complex TI models.
07
2000
1239
1250
10.1190/1.1444815
10.1190/1.1444815
https://library.seg.org/doi/10.1190/1.1444815

https://library.seg.org/doi/pdf/10.1190/1.1444815

http://geophysics.geoscienceworld.org/cgi/doi/10.1190/1.1444815
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