摘要
陕南地区地热资源研究程度较低,利用较低。本文选取陕西省汉中市佛坪县长角坝镇龙草坪温泉作为研究对象,分析其温泉地热资源赋存特征,为其地热资源开发利用提供一定的参考。采用的方法:(1)对该泉进行为期一年的流量和温度测量,(2)对该泉水进行水质检测分析和同位素测年分析,三是计算储层温度和循环深度。该温泉温度为24.1~26.3℃,流量范围为3.95 m^(3)/h;泉水呈碱性,水化学类型为HCO_(3)-SO_(4)-Na型,可命名为硅-氟水;热储温度为54.36℃,热水循环深度范围大约在1785.02 m,属于中深层地热资源;该温泉热源为来自地球内部的热能传导和地壳内岩浆岩的放射性衰变生热,热储岩性为片麻岩。
The study level and utilization rate of geothermal resources in southern Shaanxi are relatively low.This paper selects the Longcaoping Hot Spring in Changjiaoba Town,Foping County,Hanzhong City,Shaanxi Province as the research object to analyze its geothermal resource characteristics,providing a reference for the development and utilization of these resources.The adopted methodologies include:(1)conducting flow rate and temperature measurements for one year,(2)performing water quality tests and isotope dating analysis on the spring water,and calculating reservoir temperatures and circulation depths.The hot spring has a temperature range of 24.1℃~26.3℃with a flow rate ranging from 3.95 m^(3)/h.The water is alkaline,with a hydrochemical type classified as HCO_(3)-SO_(4)-Na,which can be named silicate-fluoride water.The thermal reservoir temperature is calculated to be 54.36℃,and the depth of the hot water circulation is approximately within the range of 1785.02 m,indicating it belongs to mid-to-deep layer geothermal resources.The heat source of this hot spring comes from the conduction of internal Earth heat and radiogenic heating from magmatic rocks within the crust.The thermal reservoir rock type is gneiss.
作者
商旭甫
段晨阳
王克
王璐
李明珠
白小鸟
张乐
SHANG Xu-fu;DUAN Chen-yang;WANG Ke;WANG Lu;LI Ming-zhu;BAI Xiao-niao;ZHANG Le(Shaanxi Hydrogeology and Environmental Geological Survey Center,Xi'an,Shaanxi 710068,China)
出处
《地下水》
2025年第5期8-10,47,共4页
Ground water
基金
陕西省自然科学基础研究计划项目(2024JC-YBQN-0363)。
关键词
陕南中深层地热资源
龙草坪温泉
基岩构造裂隙
mid-to-deep layer geothermal resources in southern Shaanxi
Longcaoping hot spring
bedrock structural fractures
