Seismic Dispersion and Attenuation in Saturated Porous Rock With Aligned Slit Cracks
文献类型：期刊论文
| 作者 | Fu, Bo-Ye1,2,3,4; Guo, Junxin3,5; Fu, Li-Yun1,5; Glubokovskikh, Stanislav3; Galvin, Robert J.3; Gurevich, Boris3,6 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 123期号:8页码:6890-6910 |
| ISSN号 | 2169-9313 |
| DOI | 10.1029/2018JB015918 |
| 英文摘要 | 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. |
| WOS关键词 | FREQUENCY-DEPENDENT ANISOTROPY ; FINITE THICKNESS THEORY ; ELASTIC-WAVES ; FLUID-FLOW ; ULTRASONIC MEASUREMENTS ; SCATTERING ATTENUATION ; NUMERICAL SIMULATIONS ; CIRCULAR CRACK ; FRACTURES ; PROPAGATION |
| 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] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000446170700043 |
| 资助机构 | 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 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/89186]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：地质与地球物理研究所
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