石油物探2017，Vol.56Issue(2)：171-178,202,9.DOI:10.3969/j.issn.1000-1441.2017.02.002
基于相速度的TTI介质射线追踪方法研究
Research on a ray tracing method for TTI medium based on phase velocity
摘要
Abstract
The ray tracing for TTI medium determines the efficiency and precision of modeling and imaging in TTI medium.In this paper we proposed a new strategy named phase velocity ray tracing on the basis of eikonal equation ray tracing.This strategy established phase velocity ray tracing system based on Hamilton formula.Through substituting group velocity and emergence angle we convert the system to ray tracing differential equation for TTI medium.Then we use Runge-Kutta method to solve the differential equation and get coordinates and emergence angles for every continuation.Phase velocity ray tracing method improved the operation efficiency with high accuracy and stability,which is benefit to the later tomography iterative inversion.The results of numerical tests prove the correctness and practicality of this method.关键词
TTI介质/TTI建模/射线追踪/程函方程/相速度Key words
TTI medium/TTI modeling/ray tracing/Eikonal equation/phase velocity分类
天文与地球科学引用本文复制引用
居兴国,郭恺,刘定进..基于相速度的TTI介质射线追踪方法研究[J].石油物探,2017,56(2):171-178,202,9.基金项目
国家高技术研究发展计划(863计划)课题(2011AA060303)资助.This research is financially supported by National High-tech R&D Program (863 Program)of China (Grant No.2011AA060303). （863计划）
