摘要
地热回灌是实现地热能可持续利用的最有效手段。然而,在地热回灌过程中,会有多种因素影响回灌效果,化学堵塞便是普遍存在的影响因素。地热水由于压力和温度的变化,某种矿物成分因过饱和而产生沉淀进而堵塞孔隙喉道导致回灌量衰减。本文根据陕西宾馆于2011年进行的回灌试验,利用水化学分析及结垢预测软件来分析水化学成分和矿物饱和指数(SI),检验矿物溶解或沉淀的可能性。据预测结果,对地热回灌水进行预处理再回灌,提高回灌效率。
Geothermal reinjection is considered as the most effective method to achieve sustainable use of geothermal resources.However,during the process of geothermal reinjection,there will be a variety of factors affect the result of reinjection.Chemical clogging is one of the prevailing influences.When pressure and temperature of geothermal water change,some minerals may deposit because of over saturation and then plug the pore and reduce the amount of reinjection.This article based on the reinjection test at Shanxi Hotel in 2011.With the software of chemical analysis and scaling prediction to analyze the chemical composition,mineral saturation index(SI) and test the possibility of mineral dissolution or deposition.According to the Predictions,treat the geothermal water before reinjection,and improve the efficiency of reinjection.
出处
《地下水》
2011年第6期27-28,91,共3页
Ground water
关键词
地热回灌
化学堵塞
配伍性
结垢预测
水化学分析
Geothermal reinjection
chemical clogging
compatibility experiment
scaling prediction and chemical analysis of water
