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为了科学合理开发利用地热资源,在分析太原市亲贤地垒区地热田形成背景的基础上建立了地热田地质模型,分析了热水补给来源和运移机制,并对地热资源进行了评价。结果表明,太原市亲贤地热田地热水来源于大气降水补给,属滞流型无氚老水;亲贤地垒区热田具备了良好的盖层、热储、热源和水循环通道等地质条件,热水是经深循环(受深部热源加热)而形成的;热水开采量不能超过3 600m3/d,热水储存资源量为9.76×108 m3,可实现开采的地热能折合标准煤约1 500×104t。
In order to develop and utilize the geothermal resources scientifically and reasonably, the geothermal field geologic model was established on the basis of analyzing the formation background of the geothermal field in Qinxian base in Taiyuan. The source and transport mechanism of hot water supply were analyzed and the geothermal resources were evaluated. The results show that the geothermal water in the Yinxian geothermal field in Taiyuan comes from the recharge of atmospheric precipitation, which belongs to the stagnant and tritium-free old water. The geothermal field in Qinxian base zone has good geological conditions such as cap rock, thermal reservoir, heat source and water circulation channel , Hot water is formed through deep cycle (heated by deep heat source); the amount of hot water exploitation can not exceed 3 600m3 / d and the amount of hot water storage resources is 9.76 × 108 m3, and the geothermal energy that can be exploited can be equivalent to about 1 500 × 104t.