Zoning of development and utilization and evaluation of deep geothermal resources in Xiong'an New Area  

作　　者：Ming-xiao Yu Xi Zhu Gui-ling Wang Wei Zhang Feng Ma 

机构地区：[1]Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang,050061,China [2]Technology Innovation Center for Geothermal&Hot Dry Rock Exploration and Development,Ministry of Natural Resources,Shijiazhuang 050061,China

出　　处：《Journal of Groundwater Science and Engineering》2025年第1期47-61,共15页地下水科学与工程(英文版)

基　　金：funded by the Study on enhanced heat transfer mechanism of low-permeability carbonate rocks under in-situ conditions under Grant number YK202305;the National Natural Science Foundation of China under Grant number 42272350;the Geothermal Survey Project of the China Geological Survey under Grant number DD20221676.

摘　　要：Xiong'an New Area boasts abundant geothermal resources,with widespread Jixianian geother-mal reservoirs serving as key targets for exploration and development.Zoning geothermal resources helps characterize their distribution and attributes,offering critical guidance for their sustainable exploitation and utilization.This study integrates data from drilling and production tests across 21 geothermal wells to analyze the Jixianian strata,including depth,thickness,temperature,single-well water yield,Groundwater Level Depth(GWD),and Total Dissolved Solids(TDS).Employing fuzzy mathematics,a zoning analysis was performed,yielding quantitative evaluation scores and delineating favorable zones for development.Key findings include:(1)Geothermal reservoirs in the Rongcheng and Niutuozhen uplifts exhibit shallow burial depths,substantial thicknesses,high productivity,and relatively low temperatures,making them highly suitable for large-scale geothermal exploitation;(2)Zones with high resource potential but uncertain conditions require further exploration to mitigate development risks;(3)Areas near the Rongcheng fault or Jixianian strata buried deeper than 4,000 m are recommended for deferred exploitation;(4)Comprehensive evaluation reveals that the Jixianian carbonate geothermal reservoirs in Xiong'an New Area manifest 168 geothermal resources of 5,370.31×10 J,geothermal fluid reserves of 101.17×10 m3,and recoverable fluid 4 reserves of 93.41×10 m3/d under balanced extraction and reinjection.Recoverable geothermal heat 164 amounts to 9.36×10 J/a,equivalent to 319.4×10 t/a of standard coal.This study provides valuable insights into the exploration and sustainable exploitation of deep geothermal reservoirs in Xiong'an New Area,enhancing resource utilization and contributing to the development of a green and sustainable Xiong'an New Area.

关 键 词：Zoning of geothermal resources Fuzzy mathematics Geothermal energy Extraction and rein-jection balance Jixianian geothermal reservoirs 

分 类 号：P314[天文地球—固体地球物理学]