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Effect of Stress Interactions on Effective Elasticity and Fracture Parameters in the Damage Zones

文献类型：期刊论文

作者Cao, Chenghao1; Fu, Li-Yun4; Fu, Bo-Ye3; Guo, Qiang2
刊名FRONTIERS IN EARTH SCIENCE
出版日期2021-05-13
卷号9页码:12
关键词stress interaction fracture clustering damage zone inversion modeling
DOI10.3389/feart.2021.643372
英文摘要Elastic interactions between fractures will greatly affect the effective elasticity, which, in turn, will reshape the effective fracture parameters. The disturbance will be more complex in the fault zone due to the complicated fracture distributions. This problem is addressed by the comparison of two types of solutions: one containing the stress interaction while the other one excluding the stress interaction. The gap between the two solutions allows the quantitative estimation of stress interactions on elasticity. Furthermore, based on the orthorhombic assumption for fracture clustering in the damage zone, the effect of stress interaction on the equivalent fracture parameter is estimated. We first characterize the fracture parameters in the fault damage zone considering more realistic distributions of fractures. Then, a series of numerical simulations are conducted to study the effective parameters of the fractured model. Finally, assuming the orthorhombic system of the fracture clustering, we invert the crack density and validate the accuracy of the inversion through the incidence angle seismic velocities. Our numerical results suggest that the size of fractures will determine the dominant type of stress interactions, and thus significantly reshape the effective properties of the models regardless of the spatial distribution of the fracture. Furthermore, the stress interactions tend to underestimate the fracture density for models containing long fractures but generate a relatively satisfactory inverted fracture density for short fractures.
WOS关键词SEISMIC ATTENUATION ; POROUS ROCKS ; DISPERSION ; ANISOTROPY ; CRACKS ; SHALE
资助项目Strategic Priority Research Programof the Chinese Academy of Sciences[XDA14010303]
WOS研究方向Geology
语种英语
WOS记录号WOS:000654984800001
出版者FRONTIERS MEDIA SA
资助机构Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences ; Strategic Priority Research Programof the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/101215]  
专题中国科学院地质与地球物理研究所
通讯作者Fu, Li-Yun
作者单位1.Nanjing Tech Univ, Coll Transportat Sci & Engn, Nanjing, Peoples R China
2.China Jiliang Univ, Coll Informat Engn, Hangzhou, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
4.China Univ Petr East China, Key Lab Deep Oil & Gas, Dongying, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Chenghao,Fu, Li-Yun,Fu, Bo-Ye,et al. Effect of Stress Interactions on Effective Elasticity and Fracture Parameters in the Damage Zones[J]. FRONTIERS IN EARTH SCIENCE,2021,9:12.
APA Cao, Chenghao,Fu, Li-Yun,Fu, Bo-Ye,&Guo, Qiang.(2021).Effect of Stress Interactions on Effective Elasticity and Fracture Parameters in the Damage Zones.FRONTIERS IN EARTH SCIENCE,9,12.
MLA Cao, Chenghao,et al."Effect of Stress Interactions on Effective Elasticity and Fracture Parameters in the Damage Zones".FRONTIERS IN EARTH SCIENCE 9(2021):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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