摘要
牛驼镇地热田具有水量大、温度高、埋藏浅等开发利用优势,其热源形成、对流循环、盖层保温在区域上有一定代表性和典型性。通过分析地热田储层、盖层特征和通道特征来阐明牛驼镇地热田独特的地热系统成因机制。分析表明:牛驼镇地热温度场受区域凹凸相间地质构造所控,地热田地梯温度值分布东南部高、东北部低,轴部高。岩溶-裂隙空间使其具备充足的高温地热水源储备资源、凹凸相间的地质构造使地热田形成良好的深部热源对流循环条件,新近系和第四系厚层储热盖层为基岩热储热量保温提供保障。
The Niulao Town geothermal field has the advantage of development and utilization of large amounts of water,high temperatures,shallow burial,etc. Its heat source formation,convection cycle,and caprock insulation are representative and typical in the region. By analyzing geothermal reservoirs,caprock characteristics,and channel characteristics,the unique geothermal system genetic mechanism of the Qiluo town geothermal field is elucidated. The analysis shows that the geothermal field in Niulua Town is controlled by the intertidal geological structure. The geothermal field temperature distribution in the geothermal field is high in the southeast and low in the northeast and high in the axis. The karst-fractured space provides sufficient reserves of high-temperature geothermal water resources,and the convex and concave geologic structures make the geothermal field a favorable convective circulation condition of deep heat sources. Neogene and Quaternary thick thermal storage caprocks provide heat storage for bedrock heat. Insulation provides protection.
作者
吕灿
LV Can(The Third Hydrogeology and Engineering Geological Brigade of Hebei Provincial Bureau of Geology and Mineral Re-sources,Hengshui,Hebei,053000,Chin)
出处
《地下水》
2018年第3期28-30,共3页
Ground water
关键词
牛驼镇
地热储层
断凸
地梯温度
Niu Tuo Town
geothermal reservoir
fault bump
ground temperature
