Seismic wave propagation in Kelvin visco-elastic VTI media
Lu Jun1 and Wang Yun2
1. School of Energy Resources, China University of Geosciences, Beijing 100083, China.
2. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China.
Abstract：
In this article, under the assumption of weak anisotropy and weak attenuation, we present approximate solutions of anisotropic complex velocities and quality-factors for Kelvin visco-elastic transverse isotropy (KEL-VTI) media, based on the complex physical parameter matrix. Also, combined with the KEL-VTI media model, the propagation characteristics of the qP-, qSV-, and qSH-wave phases and energies are discussed. Further, we build a typical KEL-VTI media model of the Huainan coal mine to model the wave propagation. The numerical simulation results show that the PP- and PSV-wave theoretical wave-fields are close to the wave-fields of three-component P- and converted-waves acquired in the work area. This result proves that the KEL-VTI media model gives a good approximation to this typical coalfield seismic-geologic conditions and is helpful to the study of attenuation compensation of multi-component seismic data.
LU Jun,WANG Bin. Seismic wave propagation in Kelvin visco-elastic VTI media[J]. APPLIED GEOPHYSICS, 2010, 7(4): 357-364.
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