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Seismic Dispersion and Attenuation in Saturated Porous Rock With Aligned Slit Cracks
Fu, Bo-Ye1,2,3,4; Guo, Junxin3,5; Fu, Li-Yun1,5; Glubokovskikh, Stanislav3; Galvin, Robert J.3; Gurevich, Boris3,6
2018-08-01
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
卷号123期号:8页码:6890-6910
摘要We estimate the seismic attenuation and velocity dispersion induced by fluid pressure diffusion in a saturated porous medium containing a sparse distribution of aligned slit fractures. This is done by solving the scattering problem for a single crack and using Waterman-Truell scattering approximation for a distribution of cracks. This approach gives a numerical solution for the entire frequency range and analytical solutions for the low- and high-frequency limits. Analysis of the results shows that the characteristics of the seismic dispersion and attenuation for the slit cracks are similar to known results for penny-shaped crack. At high frequencies, the attenuation and dispersion are controlled by the crack density regardless of the crack geometry. At low frequencies, due to the different geometries of the slit and penny-shaped cracks, the characteristics of seismic dispersion and attenuation are different. For both the slit and penny-shaped crack case, the slope of the frequency dependence attenuation of factor (inverse quality factor) Q(-1) tends to be 1. Yet the low-frequency asymptotic solutions for these two cases are somewhat different. For penny-shaped cracks, the Q(-1)(omega) on the bilogarithmic scale has a straight line asymptote with slope 1, so that the attenuation factor at low frequencies is proportional to the frequency . However, for slit cracks, the asymptotic low-frequency solution contains a logarithmic function of , and no such asymptote exists. At the same time, similarly to the penny-shaped crack case, the solution for compressional velocity in the low-frequency limit is consistent with the anisotropic Gassmann theory.
DOI10.1029/2018JB015918
资助者Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council
关键词[WOS]FREQUENCY-DEPENDENT ANISOTROPY ; FINITE THICKNESS THEORY ; ELASTIC-WAVES ; FLUID-FLOW ; ULTRASONIC MEASUREMENTS ; SCATTERING ATTENUATION ; NUMERICAL SIMULATIONS ; CIRCULAR CRACK ; FRACTURES ; PROPAGATION
语种英语
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010303] ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration"[B18055] ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China[2016YFC0601101] ; China Scholarship Council[201704910502]
资助者Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; 111 project "Deep-Superdeep Oil & Gas Geophysical Exploration" ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; Curtin Reservoir Geophysics Consortium (CRGC) Major State Research Development Program of China ; China Scholarship Council ; China Scholarship Council
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000446170700043
出版者AMER GEOPHYSICAL UNION
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89186
专题地球与行星物理院重点实验室
通讯作者Guo, Junxin; Fu, Li-Yun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
3.Curtin Univ, Dept Explorat Geophys, Perth, WA, Australia
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.China Univ Petr East China, Sch Geosci, Qingdao, Peoples R China
6.CSIRO, Kensington, NSW, Australia
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GB/T 7714
Fu, Bo-Ye,Guo, Junxin,Fu, Li-Yun,et al. Seismic Dispersion and Attenuation in Saturated Porous Rock With Aligned Slit Cracks[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2018,123(8):6890-6910.
APA Fu, Bo-Ye,Guo, Junxin,Fu, Li-Yun,Glubokovskikh, Stanislav,Galvin, Robert J.,&Gurevich, Boris.(2018).Seismic Dispersion and Attenuation in Saturated Porous Rock With Aligned Slit Cracks.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,123(8),6890-6910.
MLA Fu, Bo-Ye,et al."Seismic Dispersion and Attenuation in Saturated Porous Rock With Aligned Slit Cracks".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 123.8(2018):6890-6910.
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