石油地球物理勘探2019，Vol.54Issue(2)：302-311,前插2,11.DOI:10.13810/j.cnki.issn.1000-7210.2019.02.008
TTI介质qP波伪谱法正演模拟
qP-wave numerical simulation in TTI media with pseudospectral method
摘要
Abstract
Based on Tsvankins exact phase velocity for VTI media,we obtain the exact phase velocity of qP-wave for 3DTTI media with the coordinate transformation. Then following Thomsen anisotropic parameters,we gain the approximate formula of phase velocity for 3D TTI media with Taylor series.The phase velocity analysis shows that the approximate formula could well fit the exact formula.From the approximate formula of phase velocity,we derive the qP-wave dispersion relation and wave equation in the time-wavenumber domain for 3DTTI media.The stability of the wave equation is analyzed.Numerical examples demonstrate that the solution of the wave equation proposed in this paper is stable and free of S-wave artifacts.关键词
TTI介质/相速度/纯qP波/有限差分法/伪谱法Key words
TTI media/phase velocity/pure qP-wave/finite difference method/pseudo-spectral method分类
天文与地球科学引用本文复制引用
张庆朝,朱国维,周俊杰,朱聪聪,刘卫刚..TTI介质qP波伪谱法正演模拟[J].石油地球物理勘探,2019,54(2):302-311,前插2,11.基金项目
本项研究受国家重点研发计划项目"地质异常煤岩物性参数的地球物理响应规律"(2018YFC0807801)资助. （2018YFC0807801）
