中文摘要：

利用6省区49个热水样品的测试数据，分4类方法估算热储温度，以天津地区为例，讨论区域地质背景下热储温度的估算，并对怀疑发生混合作用的水样点建立混合模型。结果表明，不同地热温标的应用条件各不相同，应用到实际水样后得到的温标估算结果差异很大，需要利用Na-K-Ca三角图和1g（Q／K）图判断矿物一流体的平衡状态，还要综合考虑蒸汽散失、混合等对温度的影响。天津地区8个地热井估算的热储温度在83—120℃之间；广州三元里井热水混合前的深部热储温度为79．3℃，混入的冷水比例为83％。

英文摘要：

Temperatures of geothermal reservoirs are calculated in 4 ways with data of 49 thermal water samples in this study. Taking thermal groundwater of Tianjin as an example, calculation of temperature of geothermal reservoirs under regional geologic conditions is discussed. In addition, mixing models are established in the sample which is doubted to have mixed with cold water. The results indicate that conditions for applications of various geothermometers are different from each other. These geothermometers are applied to calculate temperature based on field data. However, the results obtained are quite different. The Na-K-Ca diagram and the 1g（ Q/K）figure are used to examine the mineral-fluid equilibrium. Lost of steam and mixture with other water are also needed to be considered. The reservoir temperature estimated at 8 geothermal wells in the Tianjin area ranges from 83 to 120 ℃. The reservoir temperature before mixture estimated at the Sanyuanli well in Guangzhou is 79. 3℃ and the percentage of mixed cold water is 83%.