Extracting Low-Frequency Information from Time Attenuation in Elastic Waveform Inversion
文献类型：期刊论文
| 作者 | Guo, Xuebao1,2; Liu, Hong1,2; Shi, Ying3,4; Wang, Weihong4 |
| 刊名 | PURE AND APPLIED GEOPHYSICS
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 174期号:3页码:1303-1314 |
| 关键词 | Elastic Waveform Inversion Frequency Filtering Low Frequency Time Attenuation Time Domain |
| ISSN号 | 0033-4553 |
| DOI | 10.1007/s00024-016-1462-1 |
| 文献子类 | Article |
| 英文摘要 | Low-frequency information is crucial for recovering background velocity, but the lack of low-frequency information in field data makes inversion impractical without accurate initial models. Laplace-Fourier domain waveform inversion can recover a smooth model from real data without low-frequency information, which can be used for subsequent inversion as an ideal starting model. In general, it also starts with low frequencies and includes higher frequencies at later inversion stages, while the difference is that its ultralow frequency information comes from the Laplace-Fourier domain. Meanwhile, a direct implementation of the Laplace-transformed wavefield using frequency domain inversion is also very convenient. However, because broad frequency bands are often used in the pure time domain waveform inversion, it is difficult to extract the wavefields dominated by low frequencies in this case. In this paper, low-frequency components are constructed by introducing time attenuation into the recorded residuals, and the rest of the method is identical to the traditional time domain inversion. Time windowing and frequency filtering are also applied to mitigate the ambiguity of the inverse problem. Therefore, we can start at low frequencies and to move to higher frequencies. The experiment shows that the proposed method can achieve a good inversion result in the presence of a linear initial model and records without low-frequency information. |
| WOS关键词 | SEISMIC-REFLECTION DATA ; CROSS-HOLE TOMOGRAPHY ; LAPLACE DOMAIN ; EQUATION METHOD ; MODEL ; APPROXIMATION ; MIGRATION ; STRATEGY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000396834700037 |
| 出版者 | SPRINGER BASEL AG |
| 资助机构 | Elastic Wave Seismic Imaging Technology Cooperation R & D Project of China National Petroleum Corporation ; Major State Research Development Program of China(2016YFC0601101) ; Project of National Natural Science Foundation of China(41574117 ; Heilongjiang Province Natural Science Fund for Distinguished Young Scholar(JC2016006) ; Open Project of State Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology(LP1509) ; 41474118) ; Elastic Wave Seismic Imaging Technology Cooperation R & D Project of China National Petroleum Corporation ; Major State Research Development Program of China(2016YFC0601101) ; Project of National Natural Science Foundation of China(41574117 ; Heilongjiang Province Natural Science Fund for Distinguished Young Scholar(JC2016006) ; Open Project of State Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology(LP1509) ; 41474118) ; Elastic Wave Seismic Imaging Technology Cooperation R & D Project of China National Petroleum Corporation ; Major State Research Development Program of China(2016YFC0601101) ; Project of National Natural Science Foundation of China(41574117 ; Heilongjiang Province Natural Science Fund for Distinguished Young Scholar(JC2016006) ; Open Project of State Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology(LP1509) ; 41474118) ; Elastic Wave Seismic Imaging Technology Cooperation R & D Project of China National Petroleum Corporation ; Major State Research Development Program of China(2016YFC0601101) ; Project of National Natural Science Foundation of China(41574117 ; Heilongjiang Province Natural Science Fund for Distinguished Young Scholar(JC2016006) ; Open Project of State Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology(LP1509) ; 41474118) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53040]  |
| 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 | Guo, Xuebao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Northeast Petr Univ, Sci & Technol Innovat Team Fault Deformat Sealing, Sch Earth Sci, Daqing 163318, Peoples R China 4.Northeast Petr Univ, Sch Earth Sci, Daqing 163318, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Xuebao,Liu, Hong,Shi, Ying,et al. Extracting Low-Frequency Information from Time Attenuation in Elastic Waveform Inversion[J]. PURE AND APPLIED GEOPHYSICS,2017,174(3):1303-1314. |
| APA | Guo, Xuebao,Liu, Hong,Shi, Ying,&Wang, Weihong.(2017).Extracting Low-Frequency Information from Time Attenuation in Elastic Waveform Inversion.PURE AND APPLIED GEOPHYSICS,174(3),1303-1314. |
| MLA | Guo, Xuebao,et al."Extracting Low-Frequency Information from Time Attenuation in Elastic Waveform Inversion".PURE AND APPLIED GEOPHYSICS 174.3(2017):1303-1314. |
入库方式： OAI收割
来源：地质与地球物理研究所
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