Common angle image gathers obtained from Gabor-Daubechies beamlet prestack depth migration
文献类型：期刊论文
| 作者 | Chen, L; Wu, RS; Wang, WJ |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2004-09-01 |
| 卷号 | 47期号:5页码:876-885 |
| 关键词 | Gabor-Daubechies beamlet prestack depth migration local angle image matrix common reflection-angle image gather common dip-angle image gather SEG-EAGE 2D salt model |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | Due to multi-paths of wave propagating through complex media, the problem of reflector location ambiguity is often encountered in the conventional offset-domain common image gathers (CIGs). Angle-domain CIGs have been proposed as a solution to this problem and become a natural choice for velocity analysis, AVA and true amplitude migration/imaging. The development of wave-theory based seismic migration and imaging methods provides reliable ways for the construction of angle-domain CIGs of high quality. In particular, the beamlet-domain wavefield extrapolation and migration method, in which both the wavefield decomposition functions and the extrapolation propagators bear localization properties in both space and direction, has been proved to be an effective tool for angle-related studies. In this paper, beamlet prestack depth migration based on Gabor-Daubechies frame decomposition is used for angle-domain imaging. Through different stack procedures, both common reflection-angle image gathers (CRAIG) and common dip-angle image gathers (CRAIG) are constructed from the local angle image matrices. As a numerical example, the CRAIGs and CRAIGs for the SEG-EAGE 2D salt model are calculated and analyzed. Based on their distinct features, the applications of these two CIGs to seismic imaging are discussed in detail. |
| WOS关键词 | DIFFERENTIAL SEMBLANCE OPTIMIZATION ; PROFILE MIGRATION ; VELOCITY ANALYSIS ; DOMAIN |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000224170000020 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79757]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, L |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA 3.China Earthquake Adm, Ctr Anal & Predict, Beijing 100036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, L,Wu, RS,Wang, WJ. Common angle image gathers obtained from Gabor-Daubechies beamlet prestack depth migration[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2004,47(5):876-885. |
| APA | Chen, L,Wu, RS,&Wang, WJ.(2004).Common angle image gathers obtained from Gabor-Daubechies beamlet prestack depth migration.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,47(5),876-885. |
| MLA | Chen, L,et al."Common angle image gathers obtained from Gabor-Daubechies beamlet prestack depth migration".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 47.5(2004):876-885. |
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。