3D prestack depth migration with factorization four-way splitting scheme

	3D prestack depth migration with factorization four-way splitting scheme
	Zhang, Wensheng; Zhang, Guanquan
	2005
发表期刊	INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING
ISSN	1705-5105
卷号	2 页码:183-196
摘要	3D prestack depth migration is an important and commonly used way to obtain the images of complex structures in seismic date processing. In this paper, 3D prestack depth migration with hybrid four-way splitting scheme is investigated. Wavefield extrapolation is based on the 3D acoustic one-way. The hybrid four-way splitting algorithm based on factorization is derived. Numerical calculations of 3D post-stack depth migration for an impulse and 3D prestack depth migration for SEC/EAEG benchmark model are implemented. The result of 3D post-stack depth migration show that the numerical anisotropic errors can be reduced effectively and the errors are small when the lateral velocity variations is small. Moreover, the 3D prestack depth migration for SEC/EAEG model both with two-way and four-way hybrid splitting scheme can yield its good images. The Message Passing Interface (MPI) programme is adopted on PC cluster as the large scale computation of 3D prestack depth migration. The parallel efficiency is high because of high parallel feature of 3D prestack depth migration. The methods presented in this paper can be applied in field data processing.
关键词	3D acoustic wave equation hybrid method factorization four-way splitting MPI
语种	英语
WOS研究方向	Mathematics
WOS类目	Mathematics, Applied ; Mathematics
WOS记录号	WOS:000241068100020
出版者	ISCI-INSTITUTE SCIENTIFIC COMPUTING & INFORMATION
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/1435
专题	计算数学与科学工程计算研究所
通讯作者	Zhang, Wensheng
作者单位	Chinese Acad Sci, Acad Math & Syst Sci, LSEC, Inst Computat Math & Sci Engn Comp, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wensheng,Zhang, Guanquan. 3D prestack depth migration with factorization four-way splitting scheme[J]. INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING,2005,2:183-196.
APA	Zhang, Wensheng,&Zhang, Guanquan.(2005).3D prestack depth migration with factorization four-way splitting scheme.INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING,2,183-196.
MLA	Zhang, Wensheng,et al."3D prestack depth migration with factorization four-way splitting scheme".INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING 2(2005):183-196.