Pre-stack reverse time migration for rugged topography and GPU acceleration technology
文献类型：期刊论文
| 作者 | Liu Hong-Wei1; Liu Hong1; Li Bo1; Wang Xin2; Tong Xiao-Long3; Liu Qin3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 54期号:7页码:1883-1892 |
| 关键词 | Rugged Topography Free Boundary Pre-stack Reverse Time Migration Gpu Accelerating |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.07.022 |
| 文献子类 | Article |
| 英文摘要 | Pre-stack reverse time migration (RTM) for rugged topography is a very useful tool for seismic imaging in the areas with rugged surface topography andcomplex subsurface structures. In this paper, we illustrate the implementation process of RTM for rugged topography. For the difficulty in dealing with the rugged free boundary condition with the finite difference method, we employ a simplified boundary condition which can avoid the abundant logical judgment. On this basis, we use the Graphic Processing Unit (GPU) algorithm to accelerate RTM and get an order of magnitude higher speedup ratio compared to the traditional CPU algoritm. The tests on synthetic data and the comparison with the pre-stack one-way wave method for rugged topography prove that RTM does not have the imaging dip limit, and the imaging results for near surface structures and subsurface steep structures are significantly improved. The problems of imaging noise removal and massy memory demand of RTM have been stated previously and will not be discussed in this paper. |
| WOS关键词 | VELOCITY REPLACEMENT ; IRREGULAR SURFACES ; LAND DATA ; LAYER ; IMPLEMENTATION ; EXTRAPOLATION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000293366800022 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73782]  |
| 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.SINOPEC Shengli Oilfield Co, Explorat Project Management, Dongying 257000, Peoples R China 3.Beijing Geostar Sci & Technol Co Ltd, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Hong-Wei,Liu Hong,Li Bo,et al. Pre-stack reverse time migration for rugged topography and GPU acceleration technology[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(7):1883-1892. |
| APA | Liu Hong-Wei,Liu Hong,Li Bo,Wang Xin,Tong Xiao-Long,&Liu Qin.(2011).Pre-stack reverse time migration for rugged topography and GPU acceleration technology.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(7),1883-1892. |
| MLA | Liu Hong-Wei,et al."Pre-stack reverse time migration for rugged topography and GPU acceleration technology".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.7(2011):1883-1892. |
入库方式： OAI收割
来源：地质与地球物理研究所
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