Interface Controlled Multiple Elimination by Sparsity Inversion
文献类型：期刊论文
| 作者 | Bai, Lanshu2; Liu, Yike1; Lu, Huiyi3 |
| 刊名 | COMMUNICATIONS IN COMPUTATIONAL PHYSICS
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 28期号:1页码:459-476 |
| ISSN号 | 1815-2406 |
| 关键词 | Multiple internal multiple interface-controlled multiple elimination estimation of primaries by sparsity inversion |
| DOI | 10.4208/cicp.OA-2018-0077 |
| 英文摘要 | Removing internalmultiples remains an important but challenging problem in seismic processing. The generalized Estimation of Primaries by Sparsity Inversion (EPSI) method minimizes data residuals between the calculated and observed waveformusing the sparse constraint of primary impulse responses to predictmultiples and remove them directly, instead of using the conventional adaptive subtraction method. Even though the generalized EPSI method provides a good estimate of the primaries and multiples when they overlap, it is limited by intensive computational cost. In this paper, we introduce two strategies to improve computational efficiency. First, the interface-controlled strategy is introduced by only selecting high-amplitude primary responses related to the interfaces with strong impedance contrasts to estimate multiples. The computational time is approximately proportional to the number of involved reflectors and usually, most of the internal multiple energy in the data is only related to a few strong reflectors. Therefore the modified method can remove most of the internal multiples in fewer computations than in the generalized EPSI, which loops through all the interfaces. Next, an approximate formula for estimating primary impulse responses is proposed by neglecting a computationally intensive term which corresponds to the primary responses estimated from internal multiples. According to our analyses and experiments, inmost cases, the contribution of this term is negligible because the internal multiples are weak. Therefore, the computational efficiency can be improved without significantly losing quality when estimating most primaries and multiples. In order to demonstrate this, multiple elimination of a two-layered simple data and the Pluto data are implemented. We find that the modified method can yield reliable results that require fewer computations. The improvements of the modified method may encourage the use of the generalized EPSI method in industry. |
| WOS关键词 | REVERSE TIME MIGRATION ; ITERATIVE INVERSION ; INTERNAL MULTIPLES ; SCATTERING ; PRIMARIES |
| 资助项目 | National Natural Science Foundation of China[41704061] ; National Natural Science Foundation of China[41730425] ; National Major Project of China[2017ZX05008-007] ; Seismometry Talent Training Project of the China Earthquake Administration[CEA-JC/QNCZ-18322] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | GLOBAL SCIENCE PRESS |
| WOS记录号 | WOS:000532318100023 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; Seismometry Talent Training Project of the China Earthquake Administration ; Seismometry Talent Training Project of the China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; Seismometry Talent Training Project of the China Earthquake Administration ; Seismometry Talent Training Project of the China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; Seismometry Talent Training Project of the China Earthquake Administration ; Seismometry Talent Training Project of the China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; Seismometry Talent Training Project of the China Earthquake Administration ; Seismometry Talent Training Project of the China Earthquake Administration |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96712]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Bai, Lanshu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 3.Kerogen Energy Serv Co Ltd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Lanshu,Liu, Yike,Lu, Huiyi. Interface Controlled Multiple Elimination by Sparsity Inversion[J]. COMMUNICATIONS IN COMPUTATIONAL PHYSICS,2020,28(1):459-476. |
| APA | Bai, Lanshu,Liu, Yike,&Lu, Huiyi.(2020).Interface Controlled Multiple Elimination by Sparsity Inversion.COMMUNICATIONS IN COMPUTATIONAL PHYSICS,28(1),459-476. |
| MLA | Bai, Lanshu,et al."Interface Controlled Multiple Elimination by Sparsity Inversion".COMMUNICATIONS IN COMPUTATIONAL PHYSICS 28.1(2020):459-476. |
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。