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Fault-Affected Fluid Circulation Revealed by Hydrochemistry and Isotopes in a Large-Scale Utilized Geothermal Reservoir

文献类型：期刊论文

作者Kong, Yanlong2,3,4; Pang, Zhonghe2,3,4; Pang, Jumei5; Li, Jie1; Lyu, Min2,3,4; Pan, Sheng2,3,4
刊名GEOFLUIDS
出版日期2020-06-15
卷号2020页码:13
ISSN号1468-8115
DOI10.1155/2020/2604025
英文摘要A 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.
WOS关键词GROUNDWATER-FLOW ; STABLE-ISOTOPE ; BASIN ; WATERS ; PRECIPITATION ; ORIGIN ; KR-81 ; CHINA
资助项目National Natural Science Foundation of China[41877209] ; National Natural Science Foundation of China[41727901] ; National Key Research and Development Project[2019YFB1504101]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:000546076500001
出版者WILEY-HINDAWI
资助机构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 ; 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
源URL[http://ir.iggcas.ac.cn/handle/132A11/97142]  
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Pang, Zhonghe
作者单位1.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
5.China Inst Geoenvironm Monitoring, Beijing 100081, Peoples R China
推荐引用方式
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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来源：地质与地球物理研究所

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