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A stable TTI reverse time migration and its implementation
Zhang, Yu1; Zhang, Houzhu1; Zhang, Guanquan2
2011-05-01
Source PublicationGEOPHYSICS
ISSN0016-8033
Volume76Issue:3Pages:WA3-WA11
AbstractModeling and reverse time migration based on the tilted transverse isotropic (TTI) acoustic wave equation suffers from instability in media of general inhomogeniety, especially in areas where the tilt abruptly changes. We develop a stable TTI acoustic wave equation implementation based on the original elastic anisotropic wave equation. We, specifically, derive a vertical transversely isotropic wave system of equations that is equivalent to their elastic counterpart and introduce the self-adjoint differential operators in rotated coordinates to stabilize the TTI acoustic wave equations. Compared to the conventional formulations, the new system of equations does not add numerical complexity; a stable solution can be found by either a pseudospectral method or a high-order explicit finite difference scheme. We demonstrate by examples that our method provides stable and high-quality TTI reverse time migration images.
DOI10.1190/1.3554411
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000293522500052
PublisherSOC EXPLORATION GEOPHYSICISTS
Citation statistics
Cited Times:80[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/12646
Collection中国科学院数学与系统科学研究院
Affiliation1.CGGVeritas, Houston, TX USA
2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yu,Zhang, Houzhu,Zhang, Guanquan. A stable TTI reverse time migration and its implementation[J]. GEOPHYSICS,2011,76(3):WA3-WA11.
APA Zhang, Yu,Zhang, Houzhu,&Zhang, Guanquan.(2011).A stable TTI reverse time migration and its implementation.GEOPHYSICS,76(3),WA3-WA11.
MLA Zhang, Yu,et al."A stable TTI reverse time migration and its implementation".GEOPHYSICS 76.3(2011):WA3-WA11.
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