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Fault-Affected Fluid Circulation Revealed by Hydrochemistry and Isotopes in a Large-Scale Utilized Geothermal Reservoir
Kong, Yanlong1,2,3; Pang, Zhonghe1,2,3; Pang, Jumei4; Li, Jie5; Lyu, Min1,2,3; Pan, Sheng1,2,3
2020-06-15
Source PublicationGEOFLUIDS
ISSN1468-8115
Volume2020Pages:13
AbstractA new significant aspect in the utilization of hydrothermal energy in China is the large-scale exploitation using multiwells from a single geothermal site. This requires detailed hydrogeochemical investigations to gain insight about deep groundwater circulation. At the Xiongxian karst geothermal site in North China, where the demonstration project of large-scale utilization was conducted, 40 boreholes with depths from 1000 to 1800 m were drilled in a region of 50 km(2). A total of 25 water samples were collected, and temperature loggings were conducted in 16 of these wells. At the site scale, the hydraulic head was observed to decline from SW to NE, i.e., orthogonal to that at the regional scale. Moreover, the geothermal groundwater temperature, borehole temperature gradient, and heat flow in the caprock all exhibited the same spatial trend with the groundwater head. Based on the hydrogeochemical and temperature logging data, this was explained by mixing of lateral recharging groundwater with ascending thermal fluids through the Xiongxian Fault, after excluding the causes of pumping activities and geologic structure. In addition, geothermal groundwater(81)Kr age was estimated to be approximately 760 k yr, which is much older than the(14)C age of 20 to 30 k yr. The older(81)Kr age implies a low renewability of deep groundwater circulation, which should be considered in terms of sustainable management in relation to the large-scale utilization of geothermal resources.
DOI10.1155/2020/2604025
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project
WOS KeywordGROUNDWATER-FLOW ; STABLE-ISOTOPE ; BASIN ; WATERS ; PRECIPITATION ; ORIGIN ; KR-81 ; CHINA
Language英语
Funding ProjectNational Natural Science Foundation of China[41877209] ; National Natural Science Foundation of China[41727901] ; National Key Research and Development Project[2019YFB1504101]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project
WOS Research AreaGeochemistry & Geophysics ; Geology
WOS SubjectGeochemistry & Geophysics ; Geology
WOS IDWOS:000546076500001
PublisherWILEY-HINDAWI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97142
Collection页岩气与地质工程院重点实验室
Corresponding AuthorPang, Zhonghe
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.China Inst Geoenvironm Monitoring, Beijing 100081, Peoples R China
5.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Kong, Yanlong,Pang, Zhonghe,Pang, Jumei,et al. Fault-Affected Fluid Circulation Revealed by Hydrochemistry and Isotopes in a Large-Scale Utilized Geothermal Reservoir[J]. GEOFLUIDS,2020,2020:13.
APA Kong, Yanlong,Pang, Zhonghe,Pang, Jumei,Li, Jie,Lyu, Min,&Pan, Sheng.(2020).Fault-Affected Fluid Circulation Revealed by Hydrochemistry and Isotopes in a Large-Scale Utilized Geothermal Reservoir.GEOFLUIDS,2020,13.
MLA Kong, Yanlong,et al."Fault-Affected Fluid Circulation Revealed by Hydrochemistry and Isotopes in a Large-Scale Utilized Geothermal Reservoir".GEOFLUIDS 2020(2020):13.
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