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Equivalence of Discrete Fracture Network and Porous Media Models by Hydraulic Tomography

文献类型：期刊论文

作者Dong, Yanhui1,2,3; Fu, Yunmei1,2,3; Yeh, Tian-Chyi Jim4,6; Wang, Yu-Li6; Zha, Yuanyuan5; Wang, Liheng1,2,3; Hao, Yonghong4
刊名WATER RESOURCES RESEARCH
出版日期2019-04-01
卷号55期号:4页码:3234-3247
ISSN号0043-1397
DOI10.1029/2018WR024290
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.
WOS关键词DUAL-POROSITY MODEL ; SOLUTE TRANSPORT ; CONTINUUM MODEL ; INVERSE METHOD ; FLOW ; AQUIFER ; HETEROGENEITY ; WATER ; TRANSMISSIVITY ; MATRIX
资助项目National Science and Technology Major Project of China[2017ZX05008-003-021] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030601] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2016063] ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt[DAA2-15-61224-1] ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种英语
WOS记录号WOS:000468597900036
出版者AMER GEOPHYSICAL UNION
资助机构National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; US Civilain Research and Development Foundation (CRDF) under the award: Hydraulic tomography in shallow alluvial sediments: Nile River Valley, Egypt ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City ; Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City
源URL[http://ir.iggcas.ac.cn/handle/132A11/92134]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Yeh, Tian-Chyi Jim
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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来源：地质与地球物理研究所

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