四川省康定地区地热水结垢趋势分析  

A study of the scaling trend of thermal groundwater in Kangding county of Sichuan

作　　者：韦梅华[1] 田廷山[2] 孙燕冬 李霞[2] 

机构地区：[1]中国地质大学(北京),北京100083 [2]中国地质环境监测院,北京100081 [3]甘孜州康盛地热有限公司,甘孜州626000

出　　处：《水文地质工程地质》2012年第5期132-138,共7页Hydrogeology & Engineering Geology

摘　　要：采用拉申指数和雷兹诺指数等指数判定法对四川省康定地热区4个地热井和3个温泉热水的碳酸钙结垢趋势进行计算和判定,并判定了硫酸钙和硅酸盐的结垢趋势,然后采用Na-K-Mg三角图解和WATCH程序进一步进行热储矿物平衡分析,结果表明:该区部分地下热水有结垢的可能性,主要结垢物是碳酸钙,引起结垢的矿物主要有方解石、滑石、温石棉。结果可为当地地热开发利用提供参考,也为同类研究提供一个实例。Water samples taken from 4 geothermal wells and 3 hot springs in the Kangding geothermal fields are examined in this paper. The scaling trend of the thermal groundwater is calculated and judged with the methods of Ryzner＇s index and Larson＇s index, the WATCH program and the Na-K-Mg equilibrium diagram. The results show that thermal groundwater in part of the geothermal wells and hot springs in the Kangding areas has a tendency to scale. The main precipitated scaling matter is CaCO3, and chrysotile, calcite and talc are responsible for the scaling.

关 键 词：地下热水 结垢 水-岩平衡 康定 

分 类 号：P642.14[天文地球—工程地质学]