The problems of denoise and storage in seismic reverse time migration
文献类型：期刊论文
| 作者 | Liu Hong-Wei1,2; Liu Hong1; Zou Zhen1,2; Cui Yong-Fu3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2010-09-01 |
| 卷号 | 53期号:9页码:2171-2180 |
| 关键词 | Low frequency imaging noise Laplacian filter Random boundary Data communication GPU realization |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2010.09.017 |
| 文献子类 | Article |
| 英文摘要 | Pre-stack reverse time migration (RTM) is a very useful tool for seismic imaging, however, it has some problems such as highly intensive computation cost, imaging noise, and massy memory demand, which the researchers in the field have been striving to solve. The problem of intensive computation cost could be solved by GPU/CPU collaborative computing and has been discussed in the last paper and the other two problems will be emphasized in this paper. At the beginning, we analyze the generation principle of imaging noise and propose that the phase and frequency spectra of seismic data should be modified before migration and a Laplacian filter could be used to remove the low wave-number noise efficiently. Aiming at the problem of massy memory demand, we adopt the random boundary condition which reduces the memory demand but sacrifice the computation cost. The implementation could be performed on GPU and the communication between CPU and GPU could be saved which could reduce the computation cost in another way. The tests on synthetic data examples illustrate that the difference between the migration result from the method of random boundary condition and that from the traditional method of saving the footprint of the wave field could be overlooked. |
| WOS关键词 | ELASTIC-WAVES ; PRESTACK ; EQUATION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000282294600017 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72274]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu Hong-Wei |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Tarim Oilfield Co, PetroChina, Res Inst Explorat & Dev, Korla 841000, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Hong-Wei,Liu Hong,Zou Zhen,et al. The problems of denoise and storage in seismic reverse time migration[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(9):2171-2180. |
| APA | Liu Hong-Wei,Liu Hong,Zou Zhen,&Cui Yong-Fu.(2010).The problems of denoise and storage in seismic reverse time migration.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(9),2171-2180. |
| MLA | Liu Hong-Wei,et al."The problems of denoise and storage in seismic reverse time migration".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.9(2010):2171-2180. |
入库方式： OAI收割
来源：地质与地球物理研究所
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