Author(s)

Yong Wang^1,2, Pengfei Mu³, Yanwen Duan^1,2, Ting Wang^1,2

¹Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan, China.
²Geophysics and Oil Resource Institute, Yangtze University, Wuhan, China.
³China National Offshore Oil Corporation, Tianjin, China.

The research on the propagation of seismic waves in anisotropic media is an important topic in the research of seismic exploration. In this paper, the optimal nearly-analytic discrete method of high precision and low dispersion was adopted in vertical transverse isotropic (VTI) medium of two-dimensional elastic wave equation numerical simulation. Based on the elastic wave equations in two dimensional VTI of the medium, the paper began with a discussion of the significance of the physical parameters of Thomsen, and then a different equation of elastic wave equation was established with the optimal nearly-analytic discrete method (ONAD). Finally, through the method of numerical simulation of a uniform and layered VTI model, the author focused on the research of snapshots and ground seismic records of different Thomsen parameters. In this paper, not only was the impact of the value of Thomsen parameters on the elastic wave propagation analyzed, but also the propagation laws of elastic wave in VTI medium were discussed, which have provided some reference and basis for practical seismic exploration.

VTI Media, Elastic Wave, Numerical Simulation, Thomsen Parameter

Wang, Y. , Mu, P. , Duan, Y. and Wang, T. (2018) Numerical Simulation of Elastic Wave Equation and Analysis of Wave Field Characteristics in 2-D VTI Medium. Open Journal of Yangtze Oil and Gas, 3, 153-166. doi: 10.4236/ojogas.2018.33014.