Elastic Wave Numerical Simulation in Two-Phase Transversely Isotropic Medium by High-Order Staggered-Grid Finite Difference Method
详细信息
- 责任者：Yin Xueai (Binzhou University ; Binzhou 256603 ; China) ; Qiu Guanghui
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：34(5)
- 关键词：弹性波 ; elastic waves ; 横向各向同性 ; transverse isotropy ; 波动方程 ; wave equation
- 页码：p.533-540
- 图表：3 illus., 2 tables, 11 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
Finite differential format of wave equation in two-phase transverse isotropic media(TI) is obtained by solving two-phase media wave equation,and the numerical simulation of elastic wave finite difference is carried out in two-phase TI media.The results show that in the two-phase elastic wave propagation in TI media,in addition to existing conventional fast P wave(qP1) and S wave,there is slow P wave(qP2),slow P wave was significantly less than the speed of fast P wave,and the dissipation coefficient attenuate very quickly,so in practice it is difficult to observe slow P wave.The phase of the fast P wave is same in both solid phase and liquid phase,and that of the slow P wave is reverse.the amplitude of the slow P wave in liquid phase is bigger than that in solid phase.
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