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Deprimary reverse time migration angle gathers with a stabilized Poynting vector

文献类型：期刊论文

作者Yang, Kai3,4; Dong, Xingpeng1; Wang, Xiaoyi2; Zhang, Jianfeng3,4
刊名GEOPHYSICS
出版日期2022-09-01
卷号87期号:5页码:S267-S279
ISSN号0016-8033
DOI10.1190/GEO2021-0549.1
英文摘要Deprimary reverse time migration (RTM) mitigates the problem of low-wavenumber noise and false events in conventional RTM, and the generation of high-quality angle-domain common-image gathers or angle gathers during deprimary RTM greatly extends its further applications in velocity model updating and subsurface parameter inversion. Poynting-vector-based methods are the most efficient approach to extract angle gathers from RTM or deprimary RTM. However, the instability problem of Poynting-vector-based methods seriously degrades the quality of the generated angle gathers. The instability problem arises from the oscillatory nature of the Poynting vector. To overcome this issue, we propose a novel approach by harnessing the extra simulated Hilbert transformed wavefield in deprimary RTM. Our approach consists of adding the conventional Poynting vector with an ancillary one derived from the Hilbert transformed wavefield, which allows us to eliminate the oscillatory nature of the conventional Poynting vector and obtain a stable algorithm to extract high-quality angle gathers from RTM or deprimary RTM. By using numerical examples with two synthetic data sets and a field data set from the deepwater Gulf of Mexico, we prove the effectiveness of our method in generating high-quality angle gathers.
WOS关键词PROPAGATION
资助项目National Natural Science Foundation of China[42030802] ; National Key R&D Program of China[2020YFA0713402] ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology[2022B1212010002]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者SOC EXPLORATION GEOPHYSICISTS
WOS记录号WOS:000882980700019
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology ; Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology
源URL[http://ir.iggcas.ac.cn/handle/132A11/107728]  
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Yang, Kai; Zhang, Jianfeng
作者单位1.Tsinghua Univ, Dept Math Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China
3.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China
4.Guangdong Prov Key Lab Geophys High resolut Imagi, Shenzhen, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Kai,Dong, Xingpeng,Wang, Xiaoyi,et al. Deprimary reverse time migration angle gathers with a stabilized Poynting vector[J]. GEOPHYSICS,2022,87(5):S267-S279.
APA Yang, Kai,Dong, Xingpeng,Wang, Xiaoyi,&Zhang, Jianfeng.(2022).Deprimary reverse time migration angle gathers with a stabilized Poynting vector.GEOPHYSICS,87(5),S267-S279.
MLA Yang, Kai,et al."Deprimary reverse time migration angle gathers with a stabilized Poynting vector".GEOPHYSICS 87.5(2022):S267-S279.

入库方式： OAI收割

来源：地质与地球物理研究所

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