Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR024290 |
Equivalence of Discrete Fracture Network and Porous Media Models by Hydraulic Tomography | |
Dong, Yanhui1,2,3; Fu, Yunmei1,2,3; Yeh, Tian-Chyi Jim4,6; Wang, Yu-Li6; Zha, Yuanyuan5; Wang, Liheng1,2,3; Hao, Yonghong4 | |
2019-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:4页码:3234-3247 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Hydraulic tomography (HT) has emerged as a potentially viable method for mapping fractures in geologic media as demonstrated by recent studies. However, most of the studies adopted equivalent porous media (EPM) models to generate and invert hydraulic interference test data for HT. While these models assign significant different hydraulic properties to fractures and matrix, they may not fully capture the discrete nature of the fractures in the rocks. As a result, HT performance may have been overrated. To explore this issue, this study employed a discrete fracture network (DFN) model to simulate hydraulic interference tests. HT with the EPM model was then applied to estimate the distributions of hydraulic conductivity (K) and specific storage (S-s) of the DFN. Afterward, the estimated fields were used to predict the observed heads from DFN models, not used in the HT analysis (i.e., validation). Additionally, this study defined the spatial representative elementary volume (REV) of the fracture connectivity probability for the entire DFN dominant. The study showed that if this spatial REV exists, the DFN is deemed equivalent to EPM and vice versa. The hydraulic properties estimated by HT with an EPM model can then predict head fields satisfactorily over the entire DFN domain with limited monitoring wells. For a sparse DFN without this spatial REV, a dense observation network is needed. Nevertheless, HT is able to capture the dominant fractures. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468597900036 |
WOS关键词 | DUAL-POROSITY MODEL ; SOLUTE TRANSPORT ; CONTINUUM MODEL ; INVERSE METHOD ; FLOW ; AQUIFER ; HETEROGENEITY ; WATER ; TRANSMISSIVITY ; MATRIX |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182241 |
专题 | 资源环境科学 |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China; 4.Tianjin Normal Univ, Key Lab Water Environm & Resources, Tianjin, Peoples R China; 5.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Hubei, Peoples R China; 6.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ 85724 USA |
推荐引用方式 GB/T 7714 | Dong, Yanhui,Fu, Yunmei,Yeh, Tian-Chyi Jim,et al. Equivalence of Discrete Fracture Network and Porous Media Models by Hydraulic Tomography[J]. WATER RESOURCES RESEARCH,2019,55(4):3234-3247. |
APA | Dong, Yanhui.,Fu, Yunmei.,Yeh, Tian-Chyi Jim.,Wang, Yu-Li.,Zha, Yuanyuan.,...&Hao, Yonghong.(2019).Equivalence of Discrete Fracture Network and Porous Media Models by Hydraulic Tomography.WATER RESOURCES RESEARCH,55(4),3234-3247. |
MLA | Dong, Yanhui,et al."Equivalence of Discrete Fracture Network and Porous Media Models by Hydraulic Tomography".WATER RESOURCES RESEARCH 55.4(2019):3234-3247. |
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