Thin interbed AVA inversion based on a fast algorithm for reflectivity
文献类型：期刊论文
| 作者 | Yang, Zhen2,3; Lu, Jun1 |
| 刊名 | ACTA GEOPHYSICA
 |
| 出版日期 | 2020-05-25 |
| 页码 | 14 |
| 关键词 | Amplitude variation with incident angle Inversion Thin interbed Fast algorithm Reflectivity method |
| ISSN号 | 1895-6572 |
| DOI | 10.1007/s11600-020-00448-7 |
| 英文摘要 | Zoeppritz equations form the theoretical basis of most existing amplitude variation with incident angle (AVA) inversion methods. Assuming that only primary reflections exist, that is, the multiples are fully suppressed and the transmission loss and geometric spreading are completely compensated for, Zoeppritz equations can be used to solve for the elastic parameters of strata effectively. However, for thin interbeds, conventional seismic data processing technologies cannot suppress the internal multiples effectively, nor can they compensate for the transmission loss accurately. Therefore, AVA inversion methods based on Zoeppritz equations or their approximations are not applicable to thin interbeds. In this study, we propose a prestack AVA inversion method based on a fast algorithm for reflectivity. The fast reflectivity method can compute the full-wave responses, including the reflection, transmission, mode conversion, and internal multiples, which is beneficial to the seismic inversion of thin interbeds. A further advantage of the fast reflectivity method is that the partial derivatives of the reflection coefficient with respect to the elastic parameters can be expressed as analytical solutions. Based on the Gauss-Newton method, we construct the objective function and model-updating formula considering sparse constraint, where the Jacobian matrix takes the form of an analytical solution, which can significantly accelerate the inversion convergence. We validate our inversion method using numerical examples and field seismic data. The inversion results demonstrate that the fast reflectivity-based inversion method is more effective for thin interbed models in which the wave-propagation effects, such as interval multiples, are difficult to eliminate. |
| WOS关键词 | SYNTHETIC SEISMOGRAMS ; SEISMIC DATA ; CASE-HISTORY ; DECOMPOSITION ; COMPUTATION ; PP |
| 资助项目 | National Natural Science Foundation of China[41574126] ; National Natural Science Foundation of China[U1910205] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000535377800001 |
| 出版者 | SPRINGER INTERNATIONAL PUBLISHING AG |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96690]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Lu, Jun |
| 作者单位 | 1.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Zhen,Lu, Jun. Thin interbed AVA inversion based on a fast algorithm for reflectivity[J]. ACTA GEOPHYSICA,2020:14. |
| APA | Yang, Zhen,&Lu, Jun.(2020).Thin interbed AVA inversion based on a fast algorithm for reflectivity.ACTA GEOPHYSICA,14. |
| MLA | Yang, Zhen,et al."Thin interbed AVA inversion based on a fast algorithm for reflectivity".ACTA GEOPHYSICA (2020):14. |
入库方式： OAI收割
来源：地质与地球物理研究所
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