西安市城区地热水人工加压回灌试验研究

Experiment on artificial pressure re-injection of geothermal water in Xi'an suburb

为研究西安市地热水回灌的可行性及适合的回灌模式,本文以陕西宾馆地热井加压回灌试验为例进行了试验研究,结果表明:在西安城区地热水中开展单井加压回灌是可行的,通过分析加压前后回灌能力的变化、压力与回灌量之间的关系以及回灌量与出水量之间的联系,对回灌过程中的堵塞机理进行了分析,结果说明加压回灌可以有效提高回灌能力,增大回灌量。

In order to study the feasibility of geothermal water re-injection and the appropriate recharge mode,the paper took geothermal pressure re-inject experiments in Shaanxi Hotel for examples.The result showed that pressure re-injection of single well is feasible in Xi'an suburb .Through the analysis of the change of re-injection capacity before and after artificial pressure, it analyzed the relationship between pressure and re-injection volume and the connection between re-injection volume and water yield,and an-alyzed the plug mechanism in the process of re-injection s.The results showed that the pressure re-injec-tion can effectively improve the re-injection ability and increase the re-injection volume.