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Frequency- and incident-angle-dependent P-wave properties influenced by dynamic stress interactions in fractured porous media

文献类型：期刊论文

作者Cao, Chenghao3,4; Fu, Li-Yun2; Ba, Jing1; Zhang, Yan3
刊名GEOPHYSICS
出版日期2019-09-01
卷号84期号:5页码:MR173-MR184
ISSN号0016-8033
DOI10.1190/GEO2018-0103.1
英文摘要The effect of stress interactions on the effective poroelastic properties in saturated porous media has not been well-understood, especially for rocks with a fracture density larger than the dilute limit assumption. Frequency- and angle-dependent characteristics of stress interactions are analyzed by finite-element numerical tests with a least-squares procedure. We have investigated two types of fractured media: a stacked fractured model with stress shielding and a coplanar fractured model with stress amplification. We evaluate the effect of stress interactions from different spatial distributions of fractures on seismic attenuation and dispersion, with a specific focus on their frequency- and angle-dependent characteristics. We determine with numerical examples that a greater shielding effect corresponds to a larger frequency corresponding to maximum attenuation but a smaller peak attenuation. In contrast, a larger amplification effect leads to a higher attenuation. Due to the excluded diffusion energy outside the representative volume element, increasing the incidence angle (0 - pi/9) leads to decreasing attenuation, whereas stress amplification is enhanced as the incidence angle increases continuously (pi/9 - pi/2), corresponding to increasing attenuation. This suggests that different incidence angles reshape the spatial distribution of stress interactions, in turn contributing to different frequency-dependent behaviors.
WOS关键词SEISMIC ATTENUATION ; MESOSCALE FRACTURES ; FLUID-FLOW ; DISPERSION ; ROCK ; PROPAGATION ; ANISOTROPY ; MODEL
资助项目Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences[XDA14010303] ; National Major Project of China[2017ZX05008-007] ; China Postdoctoral Science Foundation[2017M620893]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000490236900005
出版者SOC EXPLORATION GEOPHYSICISTS
资助机构Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; Strategic Leading Science and Technology Programme (Class A) of the Chinese Academy of Sciences ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/93900]  
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Fu, Li-Yun
作者单位1.Hohai Univ, Sch Earth Sci & Engn, Nanjing 211100, Jiangsu, Peoples R China
2.China Univ Petr East China, Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Chenghao,Fu, Li-Yun,Ba, Jing,et al. Frequency- and incident-angle-dependent P-wave properties influenced by dynamic stress interactions in fractured porous media[J]. GEOPHYSICS,2019,84(5):MR173-MR184.
APA Cao, Chenghao,Fu, Li-Yun,Ba, Jing,&Zhang, Yan.(2019).Frequency- and incident-angle-dependent P-wave properties influenced by dynamic stress interactions in fractured porous media.GEOPHYSICS,84(5),MR173-MR184.
MLA Cao, Chenghao,et al."Frequency- and incident-angle-dependent P-wave properties influenced by dynamic stress interactions in fractured porous media".GEOPHYSICS 84.5(2019):MR173-MR184.

入库方式： OAI收割

来源：地质与地球物理研究所

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