Methods for wave equation prestack depth migration and numerical experiments

被引：1
|
作者：
Zhang, GQ [1 ]
Zhang, WS [1 ]
机构：
[1] Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100080, Peoples R China
来源：
SCIENCE IN CHINA SERIES A-MATHEMATICS | 2004年 / 47卷 / Suppl 1期
基金：
中国国家自然科学基金;
关键词：
wave operator splitting; 3D prestack depth migration; SEG/EAEG model; synthesized-shot; finite-difference method; factorization method; hybrid method; MPI;
D O I：
10.1360/04za0010
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper the methods of wave theory based prestack depth migration and their implementation are studied. Using the splitting of wave operator, the wavefield extrapolation equations are deduced and the numerical schemes are presented. The numerical tests for SEG/EAEG model with MPI are performed on the PC-cluster. The numerical results show that the methods of single-shot (common-shot) migration and synthesized-shot migration are of practical values and can be applied to field data processing of 3D prestack depth migration.
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页码：111 / 120
页数：10
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