Numerical simulation of pumping tests in multilayer wells with non-Darcian flow in the wellbore
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作者:
Chen, CX
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China Univ Geosci, Fac Environm Sci & Geotech, Wuhan 430074, Peoples R ChinaChina Univ Geosci, Fac Environm Sci & Geotech, Wuhan 430074, Peoples R China
Chen, CX
[1
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Jiao, JJ
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机构:China Univ Geosci, Fac Environm Sci & Geotech, Wuhan 430074, Peoples R China
Jiao, JJ
机构:
[1] China Univ Geosci, Fac Environm Sci & Geotech, Wuhan 430074, Peoples R China
[2] Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
An important feature of pumping in a multilayer system is the dynamic interaction between the aquifers via non-Darcian vertical flow within the wellbore, An equivalent hydraulic conductivity (EHC) approach is used to include this transient interaction as a special leakage through the confining layer in the flow system. Different flow regimes (laminar and turbulent flows, and the transition range) are involved in a multilayer pumping test where the relation between the hydraulic gradient and flow velocity is complicated. The change of flow regimes is accommodated by varying the content of EHC as a function of the friction factor. For a particular well, the relation between friction factor and Reynolds number is unique and is obtained by interpolating Nikuradse's experimental results. A quasi-three-dimensional Galerkin finite-element method is used to integrate the vertical one-dimensional now in the wellbore and confining layers and the two-dimensional flow in the aquifers, This approach makes it possible to couple the aquifer and wellbore flows of different flow regimes and to salve them in a single numerical framework based on the same linear relation between gradient and velocity. A carefully designed pumping test in a multilayer aquifer system near Beihai City, Guangxi Autonomous Region, China, is used to demonstrate the performance of the approach.
机构:
China Agr Univ, Chinese Israeli Int Ctr Res & Training Agr, Beijing 100083, Peoples R China
China Agr Univ, Dept Irrigat & Drainage, Coll Water Conservancy & Civil Engn, Beijing 100083, Peoples R ChinaChina Agr Univ, Chinese Israeli Int Ctr Res & Training Agr, Beijing 100083, Peoples R China
Wen, Zhang
Huang, Guanhua
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China Agr Univ, Chinese Israeli Int Ctr Res & Training Agr, Beijing 100083, Peoples R China
China Agr Univ, Dept Irrigat & Drainage, Coll Water Conservancy & Civil Engn, Beijing 100083, Peoples R ChinaChina Agr Univ, Chinese Israeli Int Ctr Res & Training Agr, Beijing 100083, Peoples R China
Huang, Guanhua
Zhan, Hongbin
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Texas A&M Univ, Dept Geol & Geophys, College Stn, TX 77843 USAChina Agr Univ, Chinese Israeli Int Ctr Res & Training Agr, Beijing 100083, Peoples R China
机构:
China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China
China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China
Zhou, H. W.
Yang, S.
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China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China
机构:
Swinburne Univ Technol, Ind Res Inst Swinburne, Modeling & Proc Simulat Res Grp, Hawthorn, Vic 3122, AustraliaSwinburne Univ Technol, Ind Res Inst Swinburne, Modeling & Proc Simulat Res Grp, Hawthorn, Vic 3122, Australia
机构:
Faculty of Engineering, China University of Geosciences, WuhanFaculty of Engineering, China University of Geosciences, Wuhan
Zhu Y.
Li C.
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Faculty of Engineering, China University of Geosciences, Wuhan
Badong National Observation and Research Station of Geohazards, China University of Geosciences, WuhanFaculty of Engineering, China University of Geosciences, Wuhan
Li C.
Zhou J.
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Faculty of Engineering, China University of Geosciences, Wuhan
Badong National Observation and Research Station of Geohazards, China University of Geosciences, WuhanFaculty of Engineering, China University of Geosciences, Wuhan
Zhou J.
Xiang L.
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Faculty of Engineering, China University of Geosciences, WuhanFaculty of Engineering, China University of Geosciences, Wuhan
Xiang L.
Yu H.
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Faculty of Engineering, China University of Geosciences, WuhanFaculty of Engineering, China University of Geosciences, Wuhan
Yu H.
Chen W.
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Faculty of Engineering, China University of Geosciences, WuhanFaculty of Engineering, China University of Geosciences, Wuhan
机构:
Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Guangxi Univ, Guangxi Prov Engn Res Ctr Water Secur & Intelligen, Nanning 530004, Peoples R China
Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Guangxi, Peoples R ChinaGuangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Xiao, Liang
Chen, Boxu
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Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Guangxi Univ, Guangxi Prov Engn Res Ctr Water Secur & Intelligen, Nanning 530004, Peoples R China
Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Guangxi, Peoples R ChinaGuangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Chen, Boxu
Shi, Pengyu
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Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Guangxi Univ, Guangxi Prov Engn Res Ctr Water Secur & Intelligen, Nanning 530004, Peoples R China
Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Guangxi, Peoples R ChinaGuangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Shi, Pengyu
Teng, Kaiqing
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Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Guangxi Univ, Guangxi Prov Engn Res Ctr Water Secur & Intelligen, Nanning 530004, Peoples R China
Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Guangxi, Peoples R ChinaGuangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Teng, Kaiqing
Xu, Yongxin
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机构:
Hebei Univ Engn, Inst Africa Water Resources & Environm, Handan 056038, Peoples R China
Univ Western Cape, Dept Earth Sci, Private Bag X17, Cape Town, South AfricaGuangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Xu, Yongxin
Zong, Yijie
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Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China
Guangxi Univ, Guangxi Prov Engn Res Ctr Water Secur & Intelligen, Nanning 530004, Peoples R China
Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Guangxi, Peoples R ChinaGuangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China