Rock anelasticity due to patchy saturation and fabric heterogeneity: A double double-porosity model of wave propagation
文献类型：期刊论文
| 作者 | Ba, Jing1,2; Xu, Wenhao2; Fu, Li-Yun3; Carcione, Jose M.4; Zhang, Lin1 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 122期号:3页码:1949-1976 |
| 关键词 | Double Double Porosity Poroelasticity Rock Anelasticity Local Fluid Flow Seismic Attenuation And Dispersion Patchy Saturation |
| ISSN号 | 2169-9313 |
| DOI | 10.1002/2016JB013882 |
| 文献子类 | Article |
| 英文摘要 | Heterogeneity of rock's fabric can induce heterogeneous distribution of immiscible fluids in natural reservoirs, since the lithological variations (mainly permeability) may affect fluid migration in geological time scales, resulting in patchy saturation of fluids. Therefore, fabric and saturation inhomogeneities both affect wave propagation. To model the wave effects (attenuation and velocity dispersion), we introduce a double double-porosity model, where pores saturated with two different fluids overlap with pores having dissimilar compressibilities. The governing equations are derived by using Hamilton's principle based on the potential energy, kinetic energy, and dissipation functions, and the stiffness coefficients are determined by gedanken experiments, yielding one fast P wave and four slow Biot waves. Three examples are given, namely, muddy siltstones, clean dolomites, and tight sandstones, where fabric heterogeneities at three different spatial scales are analyzed in comparison with experimental data. In muddy siltstones, where intrapore clay and intergranular pores constitute a submicroscopic double-porosity structure, wave anelasticity mainly occurs in the frequency range (10(4)-10(7)Hz), while in pure dolomites with microscopic heterogeneity of grain contacts and tight sandstones with mesoscopic heterogeneity of less consolidated sands, it occurs at 10(3)-10(7)Hz and 10(1)-10(3)Hz (seismic band), respectively. The predicted maximum quality factor of the fast compressional wave for the sandstone is the lowest (approximately 8), and that of the dolomite is the highest. The results of the diffusive slow waves are affected by the strong friction effects between solids and fluids. The model describes wave propagation in patchy-saturated rocks with fabric heterogeneity at different scales, and the relevant theoretical predictions agree well with the experimental data in fully and partially saturated rocks. |
| WOS关键词 | PARTIAL GAS SATURATION ; INDUCED FLUID-FLOW ; SEISMIC ATTENUATION ; LABORATORY MEASUREMENTS ; RESERVOIR SANDSTONES ; VELOCITY DISPERSION ; WATER SATURATION ; ELASTIC-WAVES ; POROUS-MEDIA ; SQUIRT-FLOW |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000399660300022 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China(41390454) ; Distinguished Professor Program of Jiangsu Province, China ; Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China(41390454) ; Distinguished Professor Program of Jiangsu Province, China ; Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China(41390454) ; Distinguished Professor Program of Jiangsu Province, China ; Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China(41390454) ; Distinguished Professor Program of Jiangsu Province, China ; Fundamental Research Funds for the Central Universities, China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/52903]  |
| 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 | Ba, Jing |
| 作者单位 | 1.Hohai Univ, Sch Earth Sci & Engn, Nanjing, Jiangsu, Peoples R China 2.Xi An Jiao Tong Univ, Dept Computat Geophys, Xian, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 4.Ist Nazl Oceanog & Geofis Sperimentale, Trieste, Italy |
| 推荐引用方式 GB/T 7714 | Ba, Jing,Xu, Wenhao,Fu, Li-Yun,et al. Rock anelasticity due to patchy saturation and fabric heterogeneity: A double double-porosity model of wave propagation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2017,122(3):1949-1976. |
| APA | Ba, Jing,Xu, Wenhao,Fu, Li-Yun,Carcione, Jose M.,&Zhang, Lin.(2017).Rock anelasticity due to patchy saturation and fabric heterogeneity: A double double-porosity model of wave propagation.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,122(3),1949-1976. |
| MLA | Ba, Jing,et al."Rock anelasticity due to patchy saturation and fabric heterogeneity: A double double-porosity model of wave propagation".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 122.3(2017):1949-1976. |
入库方式： OAI收割
来源：地质与地球物理研究所
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