Wave equation prestack depth migration method in 3D VTI media
文献类型：期刊论文
| 作者 | Liu Li-Nong; Zhang Jian-Feng |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-11-01 |
| 卷号 | 54期号:11页码:2906-2915 |
| 关键词 | Wave equation Depth migration 3-D VTI One-way wave equation method |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.11.020 |
| 文献子类 | Article |
| 英文摘要 | Based on the 3-D dispersion equation for the transversely isotropic media with a vertical symmetry axis(VTI), we proposed one-way operators in the wavenumber-space domain such that the terms that contain spatial coordinates and the terms that contain wavenumbers are separated. The coefficients in one-way operators are determined using an optimization scheme for more accurately matching to the exact phase-shift operator with a wide-angle. The resulting 3-D VTI wave equation prestack migration algorithm can accommodate a wide range of anisotropy rather than the weak anisotropy. For its practical aspects, we also present a frequency-dependent varying-step depth extrapolation scheme for reducing the computational cost of wavefield depth extrapolation and an anti-alias one-way propagator aiming at imaging the steep dipped structures with 3-D sparsely sampling dataset in 3-D VTI media. The proposed 3-D VTI wave equation prestack migration scheme is demonstrated by SEG 2-D Hess VTI dataset and a 3-D migration impulse response with its layout resulting from the 3-D field data. |
| WOS关键词 | TRANSVERSELY ISOTROPIC MEDIA ; GENERALIZED-SCREEN ALGORITHMS ; STEP FOURIER METHOD ; FIELD EXTRAPOLATION ; ANISOTROPY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000297535900020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74292]  |
| 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 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Li-Nong,Zhang Jian-Feng. Wave equation prestack depth migration method in 3D VTI media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(11):2906-2915. |
| APA | Liu Li-Nong,&Zhang Jian-Feng.(2011).Wave equation prestack depth migration method in 3D VTI media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(11),2906-2915. |
| MLA | Liu Li-Nong,et al."Wave equation prestack depth migration method in 3D VTI media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.11(2011):2906-2915. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。