石油物探2018，Vol.57Issue(2)：274-282,9.DOI:10.3969/j.issn.1000-1441.2018.02.013
基于检查点方法的各向异性介质逆时偏移
Reverse time migration of anisotropic media using the checkpoint method
摘要
Abstract
A reverse time migration method for tilted transversely isotropic (TTI) media that combines the efficient internal boundary storage and checkpoint method to reduce storage is proposed.In this method,shear-wave velocity is introduced into the qP-wave equation to improve the stability of the numerical simulation.To reduce the required storage,a combined efficient internal boundary storage and checkpoint method is proposed,thus realizing accurate reconstruction of source wave fields and improving its applicability to large data computation.Parallel computing of graphic processing units is used to enhance the efficiency of the source wave field recalculation and reverse time migration for TTI media.A test using BP 2007 Anisotropic Velocity Benchmark data revealed the feasibility and effectiveness of the proposed method.关键词
各向异性介质/逆时偏移/检查点/存储策略/图形处理器/波场重建Key words
anisotropic media/reverse time migration/checkpoint/storage strategy/graphic processing unit/wave field reconstruction分类
天文与地球科学引用本文复制引用
宋利伟,石颖,柯璇,王维红,李松龄..基于检查点方法的各向异性介质逆时偏移[J].石油物探,2018,57(2):274-282,9.基金项目
东北石油大学引导性创新基金项目(2017YDL-02)资助.This research is financially supported by the Guided Innovative Fund Project of Northeast Petroleum University (Grant No.2017YDL-02). （2017YDL-02）
