| 永城市地热资源特征及成因机制研究 |
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| 引用本文： | 郭飞翔,方忆刚.永城市地热资源特征及成因机制研究[J].中州煤炭,2022,0(6):175-180. |
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| 作者姓名： | 郭飞翔 方忆刚 |
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| 作者单位： | 河南省地质矿产勘查开发局 第四地质矿产调查院，河南 郑州451452 |
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| 摘 要： | 以永城市地热为研究区域，通过资料分析，采用地热钻探、地热流体地球化学分析等方法，对区内地温场特征、热储类型及结构等进行研究。以钻探揭穿奥陶系与寒武系地层，热储层主要以奥陶系马家沟组和寒武系张夏组为主，岩性主要以灰岩为主，热储类型为层状与带状混合热储。根据相关国家标准或行业标准，对研究区不同用途地热流体水质分别进行了理疗热矿水、生活饮用水、农业灌溉用水、渔业用水、工业用水评价，地热流体氟化物含量达到命名矿水浓度标准，可作为理疗热矿水。通过稳定同位素，初步判断地热流体补给来源为大气降水。
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| 关 键 词： | 地热资源特征 水化学特征 成因机制 资源利用评价 |
Characteristics and genesis mechanism of geothermal resources in Yongcheng City |
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| Guo Feixiang,Fang Yigang. Characteristics and genesis mechanism of geothermal resources in Yongcheng City[J].Zhongzhou Coal,2022,0(6):175-180. |
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| Authors: | Guo Feixiang Fang Yigang |
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| Affiliation: | The Fourth Institute of Geology and Mineral Research of Henan Provincial Bureau of Geology and Mineral Exploration and Development,Zhengzhou451452，China |
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| Abstract: | Taking the geothermal of Yongcheng city as the research area,the characteristics of temperature field,types and structures of thermal reservoirs in the area are studied through data analysis,geothermal drilling,geothermal fluid geochemical analysis and other methods.The Ordovician and Cambrian strata are exposed by drilling.The thermal reservoir is mainly composed of Ordovician Majiagou Formation and Cambrian Zhangxia formation.The lithology is mainly limestone.The thermal reservoir type is layered and banded mixed thermal reservoir.According to relevant national or industrial standards,the water quality of geothermal fluid for different purposes in the study area was evaluated for physical therapy hot mineral water,domestic drinking water,agricultural irrigation water,fishery water and industrial water.The fluoride content of geothermal fluid reached the named mineral water concentration standard and can be used as physical therapy hot mineral water.Through stable isotopes,it is preliminarily determined that the geothermal fluid is supplied by atmospheric precipitation. |
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| Keywords: | characteristics of geothermal resources hydrochemical characteristics genetic mechanism resource utilization evaluation |
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