| 贵阳市乌当区地热田成因及水质特征分析 |
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| 引用本文： | 赵,璐 邬,立 罗湘赣.贵阳市乌当区地热田成因及水质特征分析[J].中国地质,2011,38(3):724-730. |
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| 作者姓名： | 赵 璐 邬 立 罗湘赣 |
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| 作者单位： | 1. 华北有色工程勘察院有限公司,河北石家庄,050021
2. 贵州地质工程勘察院,贵州贵阳,550008 |
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| 基金项目： | 贵州省国土资源厅2007年度公益性、基础性项目“贵阳市乌当区地热水资源评价项目”资助 |
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| 摘 要： | 贵州省地热资源丰富,贵阳市乌当区地热田属于该省隐伏型地热资源之一。本文结合钻探资料和区域地质资料,分析了地热田的埋藏条件、补径排条件、地温场等特征。该地热田主要热储层为中寒武统—奥陶系灰岩及白云岩,热水径流特征和地温场特征受乌当断裂、乌当背斜等一系列构造控制。测温曲线显示,保利2号钻孔地温梯度约为2.59℃/100 m,3号钻孔约为2.25℃/100 m。本区无附加型热源,深循环为该区热水的主要形成原因。地下热水的化学类型为SO4-Ca.Mg型,氟和硅的含量较高,具有一定的医疗价值。为实现地热资源可持续开发,今后应在本地区开展地热回灌技术的相关研究。
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| 关 键 词： | 地热成因 深循环 水质特征 乌当 |
An analysis of the genesis and water quality characteristics of the geothermal field in Wudang District, Guiyang |
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| ZHAO Lu,WU Li,LUO Xiang-gan.An analysis of the genesis and water quality characteristics of the geothermal field in Wudang District, Guiyang[J].Chinese Geology,2011,38(3):724-730. |
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| Authors: | ZHAO Lu WU Li LUO Xiang-gan |
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| Institution: | ZHAO Lu1,WU Li1,LUO Xiang-gan2(1.North China Nonferrous Engineering Investigation Institute Co.,Ltd.,Shijiazhuang 050021,Hebei,China,2.Guizhou Geological Engineering Investigation Institute,Guiyang 550008,Guizhou,China) |
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| Abstract: | Guizhou Province has rich geothermal resources,and the geothermal field in Wudang district is one of the concealed geothermal resources in Guiyang City.Mode of occurrence,recharge,flow and drainage conditions of the geothermal field were analyzed according to drilling data and regional geological data.The main geothermal reservoir is middle Cambrian-Ordovician limestone and dolomite.Characteristics of geothermal water runoff and geothermal field are controlled by a series of structures such as Wudang fractu... |
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| Keywords: | geothermal genesis deep circulation water quality characteristics Wudang |
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