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THE APPLICATION OF THE NEARLY OPTIMAL SPONGE BOUNDARY CONDITIONS FOR SEISMIC WAVE PROPAGATION IN POROELASTIC MEDIA

文献类型：期刊论文

作者Chen, Jingyi1; Bording, Ralph Phillip1; Liu, Enru2; Zhang, Zhongjie3; Badal, Jose4
刊名JOURNAL OF SEISMIC EXPLORATION
出版日期2010
卷号19期号:1页码:1-19
关键词Boundary Conditions Numerical Modeling Poroelastic Media Biot/squirt Mechanism Staggered-grid Finite-difference
ISSN号0963-0651
文献子类Article
英文摘要Absorbing boundary conditions (ABC) play an important role in eliminating artificial reflections from the edges of the seismic model. In this paper, we present a modified nearly optimal sponge boundary condition. Utilizing the measure of reflected wave energy it is possible to construct a contour map for a range of sponge absorption coefficients and numbers of grid points at tapered zone, and determine the best set of parameters to minimize this energy metric. We apply this optimal scheme to the numerical simulation of seismic wave propagation in 2D transversely isotropic poroelastic media using staggered-grid finite-difference operator. We consider a first-order hyperbolic system that is equivalent to Biot/squirt equation. The vector of unknowns in this system consists of the solid and fluid particle velocity components, the solid stress components and the fluid pressure. Eighth-order accuracy in space and second-order accuracy in time are used in our numerical computation. Modeling studies indicate remarkably good results, the nearly optimal sponge boundary conditions is simple and effective enough to eliminate the artificial reflections from the boundaries of the model.
WOS关键词FINITE-DIFFERENCE METHOD ; PERFECTLY MATCHED LAYER ; SATURATED POROUS-MEDIA ; VELOCITY-STRESS ; ELASTIC-WAVES ; GRAZING-INCIDENCE ; EQUATIONS ; SCHEMES ; IMPLEMENTATION ; ANISOTROPY
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000274138400001
出版者GEOPHYSICAL PRESS
资助机构Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy ; Atlantic Canada Opportunities Agency-AIF and Husky Energy
源URL[http://ir.iggcas.ac.cn/handle/132A11/73168]  
专题中国科学院地质与地球物理研究所
通讯作者Chen, Jingyi
作者单位1.Mem Univ Newfoundland, Dept Earth Sci, St John, NF A1B 3X5, Canada
2.ExxonMobil Upstream Res Co, Div Geophys, Houston, TX 77252 USA
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China
4.Univ Zaragoza, E-50009 Zaragoza, Spain
推荐引用方式
GB/T 7714		 Chen, Jingyi,Bording, Ralph Phillip,Liu, Enru,et al. THE APPLICATION OF THE NEARLY OPTIMAL SPONGE BOUNDARY CONDITIONS FOR SEISMIC WAVE PROPAGATION IN POROELASTIC MEDIA[J]. JOURNAL OF SEISMIC EXPLORATION,2010,19(1):1-19.
APA Chen, Jingyi,Bording, Ralph Phillip,Liu, Enru,Zhang, Zhongjie,&Badal, Jose.(2010).THE APPLICATION OF THE NEARLY OPTIMAL SPONGE BOUNDARY CONDITIONS FOR SEISMIC WAVE PROPAGATION IN POROELASTIC MEDIA.JOURNAL OF SEISMIC EXPLORATION,19(1),1-19.
MLA Chen, Jingyi,et al."THE APPLICATION OF THE NEARLY OPTIMAL SPONGE BOUNDARY CONDITIONS FOR SEISMIC WAVE PROPAGATION IN POROELASTIC MEDIA".JOURNAL OF SEISMIC EXPLORATION 19.1(2010):1-19.

入库方式： OAI收割

来源：地质与地球物理研究所

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