摘要
根据武汉城市圈岩溶热储地热田的地下热水水化学数据,总结了岩溶热水的水化学类型,分析了岩溶热水中主要组分随温度的变化特征,重点研究了水—岩作用程度和作用时间的关系,系统分析了热水中主要离子的水化学作用过程。研究结果表明,热水中主要组分含量受温度和水岩作用过程控制,TDS含量随水岩作用时间的增加而增加,随着TDS含量的增加,水岩作用受碳酸盐溶解控制逐渐转变为受硫酸盐溶解控制,高TDS时,盐岩溶解作用加强;浪口、五洪山、蛇屋山地热田属同一个岩溶水流系统,汤池地热田、马口地热井属同一个水流系统,其他地热田属各自独立的水流系统。
Based on the geothermal water hydrochemical data of karst geothermal fields of Wuhan urban agglomeration,the authors summarized the hydrochemical type of karst hot mineral water,analyzed the variation characteristics of main components of karst hot mineral water with temperature,studied the relationship between the degree and time of water-rock action,and analyzed the hydrochemical processes of the main ions in hot water.The results show that the content of main components in hot water is controlled by temperature and water-rock interaction process,the total dissolved solids content increases with the increase of water-rock action time.As the total dissolved solids content increases,the water-rock interaction was gradually transformed from carbonate dissolution to sulfate dissolution,at high total dissolved solids,the dissolution of salt rocks is enhanced.the Langkou geothermal field,the Wuhongshan geothermal field and the Shewushan geothermal field belong to the same water flow system,the Tangchi geothermal field and the Makou geothermal well belong to the same water flow system,and other geothermal fields belong to separated water flow systems.
作者
牛俊强
范威
郭昆
NIU Jun-Qiang;FAN Wei;GUO Kun(Geological Environmental Center of Hubei Province,Wuhan 430034,China;China University of Geosciences,School of Environmental Studies,Wuhan 430074,China)
出处
《物探与化探》
CAS
北大核心
2019年第4期741-748,共8页
Geophysical and Geochemical Exploration
基金
2017年度湖北省国土资源科学技术研究计划(ETZ2017A03)
关键词
岩溶热储
水化学特征
水-岩作用
武汉城市圈
karstic geothermal reservoir
chemical characteristics
water-rock interaction
Wuhan city circle
