冀中坳陷北部碳酸盐岩热储水化学特征及成因分析  

Chemical characteristics and genetic analysis of geothermal water in carbonate reservoir in the northern Jizhong Depression

作　　者：邓俊祖 蔺文静[2,3] 邢林啸 陈立[2,3] 张卫民 张良[1] DENG Jun-zu;LIN Wen-jing;XING Lin-xiao;CHEN Li;ZHANG Wei-min;ZHANG Liang(School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China;The Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China;Technical Innovation Center for Geothermal and HDR Exploration and Development,Ministry of Natural Resources,Shijiazhuang 050061,China)

机构地区：[1]东华理工大学水资源与环境工程学院,江西南昌330013 [2]中国地质科学院水文地质环境地质研究所,河北石家庄050061 [3]自然资源部地热与干热岩勘查开发技术创新中心,河北石家庄050061

出　　处：《地下水》2022年第3期1-4,12,共5页Ground water

基　　金：中国地调局项目:“冀中坳陷深部碳酸盐岩热储调查评价”(DD20190555)。

摘　　要：冀中坳陷地热资源潜力巨大,对其热储水化学特征及成因进行研究可为其下一步开发利用提供依据。通过对研究区的地热地质条件、水化学特征、同位素特征进行研究分析,确定了地热水的补给来源,热储温度及地热水的循环深度,并明确了研究区的地热水成因机制。结果表明,研究区地热水主要来自于西部太行山区大气降水补给,通过断裂由西北向东南对地热水进行补给,补给高程范围在585.7~1 361.8 m,热储温度范围在30.2℃~93.2℃,循环深度范围在955.0~2579.7 m。The geothermal resources of the Jizhong Depression have great potential, and the study of their thermal reservoir water chemistry characteristics and genesis can provide a basis for their further development and exploitation.By studying and analysing the geothermal geological conditions, hydrochemical characteristics and isotopic characteristics of the study area, the recharge zone of geothermal water, the thermal storage temperature and the circulation depth of geothermal water were determined, and the geothermal water genesis mechanism of the study area was clarified.The results show that geothermal water in the study area is mainly recharged from atmospheric precipitation in the Taihang Mountains in the west, recharging geothermal water from northwest to southeast through fractures, with recharge elevations ranging from 585.7 to 1 361.8 m, thermal storage temperatures ranging from 30.2℃ to 93.2℃ and circulation depths ranging from 955.0 to 2 579.7 m.

关 键 词：冀中坳陷 碳酸盐岩热储 水化学特征 成因机制 

分 类 号：P314.1[天文地球—固体地球物理学]