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Adaptive parameter-related implementation of the free surface in elastic anisotropic full-waveform modeling

文献类型：期刊论文

作者Zhou, Xuhui1,2; Cao, Jian1,2; Wang, Guangfu3; Sun, Jianfang3; Huo, Shoudong1,2
刊名JOURNAL OF APPLIED GEOPHYSICS
出版日期2022-11-01
卷号206页码:17
关键词2D FD modeling Free surface boundary Finite difference methods Numerical modeling
ISSN号0926-9851
DOI10.1016/j.jappgeo.2022.104785
英文摘要The near-surface anisotropy is one of the factors that lead to errors in static corrections, seismic imaging, and inaccurate surface velocity building. Therefore, it is important to study the propagation features of seismic waves in the near-surface with anisotropy. The finite-difference method is commonly used in seismic wave forward modeling, however, the numerical implementation of the free surface is nontrivial in this method, in particular to its implementation in the anisotropic media which is less studied. Here, we propose an adaptive parameterrelated free surface implementation. This method is developed from the physical viewpoint with the average medium theory and limit theorem, in which the stress-free condition is implemented by modifications of the original constitutive relation and density at the free-surface points without additional computational requirements. Numerical experiments with the increasing complexity of anisotropy in both 2D and 3D demonstrate that this method can produce precise simulation results with a spatial sampling of 10 grid points per minimum wavelength. In addition, a time-space discontinues grid strategy can be introduced in this implementation to allow the usage of the coarse grid in the deeper part where the oversampling for the surface waves is not required, which increases the flexibility and the computational efficiency of the proposed method.
WOS关键词MIGRATION VELOCITY ANALYSIS ; PROPAGATION ; BOUNDARY ; MEDIA ; MOVEOUT
资助项目National Natural Science Foundation of China[41904114] ; National Natural Science Foundation of China[41804135] ; National Natural Science Foundation of China[41904096] ; National Key Research and Development Program of China[2021YFA0716901] ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)[ZJW-2019-04]
WOS研究方向Geology ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000858994100002
出版者ELSEVIER
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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; 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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; 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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; 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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)
源URL[http://ir.iggcas.ac.cn/handle/132A11/108347]  
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Huo, Shoudong
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
3.Sinopec Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Xuhui,Cao, Jian,Wang, Guangfu,et al. Adaptive parameter-related implementation of the free surface in elastic anisotropic full-waveform modeling[J]. JOURNAL OF APPLIED GEOPHYSICS,2022,206:17.
APA Zhou, Xuhui,Cao, Jian,Wang, Guangfu,Sun, Jianfang,&Huo, Shoudong.(2022).Adaptive parameter-related implementation of the free surface in elastic anisotropic full-waveform modeling.JOURNAL OF APPLIED GEOPHYSICS,206,17.
MLA Zhou, Xuhui,et al."Adaptive parameter-related implementation of the free surface in elastic anisotropic full-waveform modeling".JOURNAL OF APPLIED GEOPHYSICS 206(2022):17.

入库方式： OAI收割

来源：地质与地球物理研究所

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