Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media
文献类型：期刊论文
| 作者 | You Jian-Jun; Chang Xu; Liu Yi-Ke |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2006-11-01 |
| 卷号 | 49期号:6页码:1770-1778 |
| 关键词 | VTI media nonhyperbolic normal moveout anisotropic parameters inversion traveltime-offset function long-offset |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The conventional Alkhalifah moveout correction equation is characterized by low precision, and even worse it may fail to describe relation of traveltime-offset of long-offset seismic data in VTI media. Aiming at improving accuracy of the moveout correction equation of long-offset seismic data in VTI media, we analyze the Alkhalifah's NMO equation at first. Then based on the least-error principle, chart of optimal correction coefficients are calculated to compensate errors resulted from long offset cases using the conventional moveout correction equation. Therefore, the optimal Alkhalifah moveout correction equation is proposed here to improve the conventional moveout correction equation. Subsequently, we derive the traveltime-offset function with a high precision model from the Fomel's group velocity equation for VU. The moveout correction equation with high precision is put forward. Above moveout correction equations are applied to inversion calculation of anisotropic parameters from long-offset seismic data. Numerical results show that the accuracy of inversion using optimal Alkhalifah moveout equation is twice that of inversion using the conventional moveout equation, and the inversion method using the high precision moveout correction equation is the most accurate. |
| WOS关键词 | TRANSVERSELY ISOTROPIC MEDIA ; ANISOTROPIC MEDIA ; VELOCITY ANALYSIS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000242388600025 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66596]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | You Jian-Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Yangtze Univ, Coll Geophys & Petr Resources, Jinzhou 434023, Peoples R China |
| 推荐引用方式 GB/T 7714 | You Jian-Jun,Chang Xu,Liu Yi-Ke. Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2006,49(6):1770-1778. |
| APA | You Jian-Jun,Chang Xu,&Liu Yi-Ke.(2006).Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,49(6),1770-1778. |
| MLA | You Jian-Jun,et al."Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 49.6(2006):1770-1778. |
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。