Wave equation depth migration with symmetric non-stationary phase shift method in axi-symmetrical anisotropic media
文献类型：期刊论文
| 作者 | Liu Li-Nong; Ghen Xiao-Hong; Zhang Jian-Feng; Liu Hong |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007 |
| 卷号 | 50期号:1页码:277-284 |
| 关键词 | wave equation anisotropic media phase-shift operators symmetric non-stationary phase shift extrapolation operator |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | A 3-D dispersion equation for the transversely isotropic media with a tilted symmetry axis is derived from the qP wave phase velocity expression. The anisotropic phase shift operator can be obtained with the vertical wavenumber, which is analytically solved from the dispersion equation. Then the symmetric nonstationary phase shift wave equation depth migration method in isotropic media is extended to anisotropic media. The macro velocity model used for describing anisotropic media is consistent with the current velocity estimation method and can simultaneously accommodate the isotropy, weak anisotropy and strong anisotropy. The symmetric non-stationary phase shift extrapolation operator can accommodate transverse variation of velocity as well as the anisotropic parameter. Although a 2-D VTI example is present in the paper, the proposed algorithm can be used in 3-D TI media as well. |
| WOS关键词 | TRANSVERSELY ISOTROPIC MEDIA ; STEP FOURIER METHOD ; VELOCITY ANALYSIS ; TTI MEDIA ; VTI MEDIA |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000244338300034 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68522]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu Li-Nong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Univ Petr, Beijing 102249, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Li-Nong,Ghen Xiao-Hong,Zhang Jian-Feng,et al. Wave equation depth migration with symmetric non-stationary phase shift method in axi-symmetrical anisotropic media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2007,50(1):277-284. |
| APA | Liu Li-Nong,Ghen Xiao-Hong,Zhang Jian-Feng,&Liu Hong.(2007).Wave equation depth migration with symmetric non-stationary phase shift method in axi-symmetrical anisotropic media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(1),277-284. |
| MLA | Liu Li-Nong,et al."Wave equation depth migration with symmetric non-stationary phase shift method in axi-symmetrical anisotropic media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.1(2007):277-284. |
入库方式： OAI收割
来源：地质与地球物理研究所
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