Deabsorption prestack time migration from rugged topography
文献类型：期刊论文
| 作者 | Han, Changshan1,2,3; Liu, Linong1,2; Liu, Zelin1,2,3; Li, Zhengwei4 |
| 刊名 | JOURNAL OF GEOPHYSICS AND ENGINEERING
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 18期号:2页码:291-303 |
| 关键词 | deabsorption PSTM rugged topography effective Q high resolution |
| ISSN号 | 1742-2132 |
| DOI | 10.1093/jge/gxab014 |
| 英文摘要 | We developed a modified topography prestack time migration (PSTM) scheme that can improve the imaging resolution by applying effective Q to topography migration. The computation of the traveltime at each imaging location in the migration is based on the floating datum smoothed by rugged topography. Unlike the common quality factor Q the effective Q only determines the frequency-dependent amplitude and the traveltime at a single imaging location, which enables us to establish a Q model in an inhomogeneous medium. Hence, we can acquire the effective Q using a scanning technology according to the width of the frequency band and signal-to-noise ratio of the imaging gathers. The proposed migration method can be integrated into the conventional topography migration workflow. Synthetic and three-dimensional (3D) field datasets indicate that the proposed deabsorption PSTM from rugged topography is effective. |
| WOS关键词 | DEPTH MIGRATION ; EXTRAPOLATION |
| 资助项目 | National Natural Science Foundation of China[42030802] ; National Natural Science Foundation of China[42074158] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000651819100010 |
| 出版者 | OXFORD UNIV PRESS |
| 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/132A11/101226]  |
| 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 | Liu, Linong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Changshan,Liu, Linong,Liu, Zelin,et al. Deabsorption prestack time migration from rugged topography[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2021,18(2):291-303. |
| APA | Han, Changshan,Liu, Linong,Liu, Zelin,&Li, Zhengwei.(2021).Deabsorption prestack time migration from rugged topography.JOURNAL OF GEOPHYSICS AND ENGINEERING,18(2),291-303. |
| MLA | Han, Changshan,et al."Deabsorption prestack time migration from rugged topography".JOURNAL OF GEOPHYSICS AND ENGINEERING 18.2(2021):291-303. |
入库方式： OAI收割
来源：地质与地球物理研究所
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