山东威海市呼雷汤地热水化学、成因与开发潜力  

Study on the hydrochemistry,genesis and development potential of Huleitang geothermal water in Weihai City,Shandong Province

作　　者：袁星芳 杨明爽 王晓翠 柳禄湧 钟振楠 李方舟 YUAN Xingfang;YANG Mingshuang;WANG Xiaocui;LIU Luyong;ZHONG Zhennan;LI Fangzhou(No.6 Exploration Institute of Geology and Mineral Resources,Weihai 264209,Shandong,China;Qingdao University,Qingdao 266071,Shandong,China)

机构地区：[1]山东省第六地质矿产勘查院,山东威海264209 [2]青岛大学,山东青岛266071

出　　处：《地质通报》2024年第1期143-152,共10页Geological Bulletin of China

基　　金：山东省科技厅项目《胶东地区典型地热田流体地球化学特征及成因研究》(编号:2019GSF109053);威海市地勘基金项目《威海市地热资源可行性勘查及开发利用规划编制》(编号:威自然资字[2019]64号)。

摘　　要：山东省储藏着丰富的中低温地热资源,呼雷汤是省内唯一可自流的温泉,其成因模式不明一定程度上影响了地热资源的有效利用。为查明呼雷汤成因模式,综合运用地面调查、物探、样品分析测试等方法进行分析研究。结果表明,呼雷汤的形成在区域上受荣成断裂控制,局部受青龙河断裂和汤西断裂控制,其补给水源为大气降水,热源为地热增温,估算补给高程为436~559 m、热储温度为109~118℃、循环深度为2159~2368 m。综上所述,呼雷汤的成因模式为:在伟德山山区获得大气降水补给后,沿荣成断裂下渗参与到地下水循环系统中,在径流过程中通过吸收围岩中的热量发生溶滤作用和水-岩相互作用,在地下2 km左右形成温度约110℃的SO_(4)·Cl-Na型水;由于温度和压力的升高,地下热水沿构造裂隙向地表流动,在上涌过程中混入部分地下水,温度降低,最后在青龙河断裂和汤西断裂的交会处、静水压力最小的部位出露成泉。通过地热水开发利用潜力评价分析可知,地热水可用于理疗、洗浴和供暖,每年可供1840个床位理疗、46万人洗浴、908×104m2面积供暖。Abundant medium and low temperature geothermal resources are stored in Shandong Province.Huleitang spring,located in Weihai of Shandong province,is a unique artesian spring in this area.Due to some unidentified genesis of Huleitang spring,the effective utilization of the geothermal resources cannot implement to a certain extent.In order to find out the genetic model of the Huleitang spring,this study comprehensively uses ground investigation,geophysical prospecting and sample analysis to analyze and study.The results show that the formation of the Hulaitang spring is controlled by Rongcheng fault in the region,and by Qinglonghe fault and Tangxi fault in the local area.Its source recharges from atmospheric precipitation,and its heat source is geothermal heating.The estimated recharge elevation is 436~559 m,the calculated geothermal reservoir temperature is 109~118℃,and the calculated circulation depth is 2159~2368 m.In summary,the genetic model of the Hulaitang spring is as follows:recharges from precipitation of Weide mountain area,infiltrates down along the Rongcheng fault and participates in the groundwater circulation system.In the process of runoff,the water type of SO_(4)·Cl-Na was formed with the temperature of 110℃ about 2 km underground by absorbing the heat of surrounding rock,dissolving and filtering,and water-rock interaction.Due to the increase of temperature and pressure,the hot water flows to the surface along the structural fractures.In the upwelling process,it mixes with some cold water,and the temperature decreases. However, it emerges as a free-flow spring at the intersection of Qinglonghe fault and Tangxi fault where is distributed withthe minimum hydrostatic pressure. According to the evaluation and analysis of geothermal water development and utilization potential,geothermal water of Hulaitang spring area can be used for physiotherapy, bathing and heating, which can provide 1840 beds forphysiotherapy, 460,000 people for bathing and 9.08 million m2 for heating each year.

关 键 词：呼雷汤 水化学特征 成因模式 开发潜力 山东 

分 类 号：P314[天文地球—固体地球物理学]