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

doi:10.1190/GEO2018-0103.1

CORC > 地质与地球物理研究所 > 中国科学院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

	Frequency- and incident-angle-dependent P-wave properties influenced by dynamic stress interactions in fractured porous media
	Cao, Chenghao 3,4; Fu, Li-Yun 2; Ba, Jing 1; Zhang, Yan 3
刊名	GEOPHYSICS
	2019-09-01
卷号	84 期号:5 页码:MR173-MR184
ISSN号	0016-8033
DOI	10.1190/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.
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关键词	SEISMIC ATTENUATION ; MESOSCALE FRACTURES ; FLUID-FLOW ; DISPERSION ; ROCK ; PROPAGATION ; ANISOTROPY ; MODEL
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SOC EXPLORATION GEOPHYSICISTS
WOS记录号	WOS:000490236900005
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
内容类型	期刊论文
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.