Optimization of geothermal water exploitation in Xinji,Hebei Province,P. R. China |
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Authors: | YUE Gao-fan LV Wen-bin ZHANG Wei SU Ran LIN Wen-jing |
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Institution: | 1Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China. 2China University of Geosciences (Beijing), Beijing 100083, China. 3No.3 Team of Hydrogeology and Engineering Geology, Hebei Provincial Geological Prospecting Bureau, Hengshui 053000, China. 4Hydrological Engineering & Geological Prospecting Institute of Hebei Province, Shijiazhuang 050061, China. |
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Abstract: | Geothermal with features of large reserves and non-pollution has been one of the most important energy. China has significant geothermal resources. There are rich hydrothermal resources in Xinji, which has been in development for 5 years. However, hot water continues to decrease because of extensive exploitation and utilization. We selected exploration area as study area, build a set of numerical models of Guantao formation on the basis of actual geological conditions. We get the distribution of hydraulic conductivity from 1.7 m/d to 1.9 m/d by parameter inversion using historical water level monitoring data, and simulation effect is good. We calculate the maximum permissible exploitation under the limitation of 200 m in depth in 50 years which is about 2.2 million m3/a. The results will provide theoretic support for plan making of geothermal exploitation. |
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Keywords: | Geothermal energy Numerical simulation Inverse calculation Maximum permissible exploitation |
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