Institutional Repository of Key Laboratory of Petroleum Resource Research, Chinese Academy of Sciences
| Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone | |
| Jiang, Bo-Wu1,2,3,4,5; Zhang, Jiang-Jie6; Zhang, Hao7; Lu, Wen-Kai2,3,4,5 | |
| 2022-06-01 | |
| Source Publication | PETROLEUM SCIENCE
 |
| ISSN | 1672-5107 |
| Volume | 19Issue:3Pages:1031-1047 |
| Abstract | Amplitude versus offset analysis is a fundamental tool for determining the physical properties of reservoirs but generally hampered by the blurred common image gathers (CIGs). The blurring can be optimally corrected using the blockwise least-squares prestack time migration (BLS-PSTM), where common-offset migrated sections are divided into a series of blocks related to the explicit offset-dependent Hessian matrix and the following inverse filtering is iteratively applied to invert the corresponding reflectivity. However, calculating the Hessian matrix is slow. We present a fast BLS-PSTM via accelerating Hessian calculation with dip-angle Fresnel zone (DFZ). DFZ is closely related to optimal migration aperture, which significantly attenuates migration swings and reduces the computational cost of PSTM. Specifically, our fast BLS-PSTM is implemented as a two-stage process. First, we limit the aperture for any imaging point with an approximated the projected Fresnel zone before calculating the Hessian matrix. Then, we determine whether a seismic trace contributes to the imaging point via DFZ during calculating the Hessian matrix. Numerical tests on synthetic and field data validate the distinct speedup with higher-quality CIGs compared to BLS-PSTM. (C) 2021 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. |
| Keyword | Prestack time migration Fresnel zone Hessian Least squares migration Migrated gather |
| DOI | 10.1016/j.petsci.2021.12.017 |
| Funding Organization | National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| WOS Keyword | POYNTING VECTOR ; INVERSION ; SHOT |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2018YFA0702501] ; NSFC[41974126] ; NSFC[41674116] ; NSFC[42004101] ; China Postdoctoral Science Foundation[2020M680516] |
| Funding Organization | National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| WOS Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Petroleum |
| WOS ID | WOS:000841174200002 |
| Publisher | KEAI PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/108420 |
| Collection | 油气资源研究院重点实验室 |
| Corresponding Author | Lu, Wen-Kai |
| Affiliation | 1.Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China 2.Inst Artificial Intelligence THUAI, Beijing 100084, Peoples R China 3.State Key Lab Intelligent Technol & Syst, Beijing 100084, Peoples R China 4.Beijing Natl Res Ctr Informat Sci & Technol BNRis, Beijing 100084, Peoples R China 5.Tsinghua Univ, Dept Automat, Beijing 100084, Peoples R China 6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China 7.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang, Bo-Wu,Zhang, Jiang-Jie,Zhang, Hao,et al. Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone[J]. PETROLEUM SCIENCE,2022,19(3):1031-1047. |
| APA | Jiang, Bo-Wu,Zhang, Jiang-Jie,Zhang, Hao,&Lu, Wen-Kai.(2022).Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone.PETROLEUM SCIENCE,19(3),1031-1047. |
| MLA | Jiang, Bo-Wu,et al."Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone".PETROLEUM SCIENCE 19.3(2022):1031-1047. |
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