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Microseismic wavefield propagation in a fracture-induced anisotropic medium based on a general dislocation source model

文献类型：期刊论文

作者Yao, Yi2,3,4; Wang, Yibo3,4; Kong, Liyun1
刊名GEOPHYSICAL PROSPECTING
出版日期2022-08-25
页码13
关键词anisotropy modelling rock physics wave
ISSN号0016-8025
DOI10.1111/1365-2478.13247
英文摘要The propagation of microseismicity in subsurface media is complex. We developed an anisotropic petrophysical model based on an empirical formula, linear slip theory and the bond transform method considering real underground conditions. Using Biot's equations, the seismic response to a general dislocation source in fracture-induced anisotropic two-phased media was solved using a staggered grid high-order finite-difference algorithm. To understand the relationship between the microseismic wave and fracture parameters, we then designed several different models to calculate the wavefield snapshots and analyse the effect of the fracture volume ratio and orientation. The modelling results indicate that the shear faulting source generates three types of waves in two-phase media. Fractures can render homogeneous media anisotropic, and anisotropy becomes more noticeable with an increase in the fracture volume ratio. This decreases the velocity of the fast longitudinal and transverse waves in the vertical direction and increases the velocity of the slow longitudinal wave in a certain range. The fracture orientation mainly influences the moment tensor and then affects the wavefronts. These simulations lay the foundation for further studies on microseismic wave propagation in fracture-induced anisotropic media.
WOS关键词SEISMIC ANISOTROPY ; FOCAL MECHANISMS ; ELASTIC-WAVES ; MOMENT TENSOR ; APPROXIMATION ; DEFORMATION ; EARTHQUAKES
资助项目Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDY-SSW-DQC009] ; CAS Project for Young Scientists in Basic Research[YSBR-020] ; National Science and Technology Major Project of China[2017ZX05032-003-001]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000844584700001
出版者WILEY
资助机构Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; CAS Project for Young Scientists in Basic Research ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/108429]  
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Wang, Yibo
作者单位1.China Geol Survey, Oil & Gas Survey, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yao, Yi,Wang, Yibo,Kong, Liyun. Microseismic wavefield propagation in a fracture-induced anisotropic medium based on a general dislocation source model[J]. GEOPHYSICAL PROSPECTING,2022:13.
APA Yao, Yi,Wang, Yibo,&Kong, Liyun.(2022).Microseismic wavefield propagation in a fracture-induced anisotropic medium based on a general dislocation source model.GEOPHYSICAL PROSPECTING,13.
MLA Yao, Yi,et al."Microseismic wavefield propagation in a fracture-induced anisotropic medium based on a general dislocation source model".GEOPHYSICAL PROSPECTING (2022):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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