德州市城区地热水人工回灌试验研究

Study on Geothermal Re-injection Experiment in Districts in Dezhou City

以德州市城区地热回灌为例,分析了地热回灌对水质、水量、水温的影响,证实了回灌井结构、热储特征、回灌压力、回灌工艺等是影响回灌效果的主要因素,明确了地热回灌量与出水量、回灌压力之间的关系,提出回灌可以有效解决地热开发利用带来的诸多问题。

Setting geothermal rejection in Dezhou districts as an example, effects of geothermal rejection to water quality, pumping rate and water temperature and elements which will effect re - injection efficiency are analysed. It is proved that the structure of re - injection well, geothermal reservoir characteristics, re - injection pressure and re - injection are major elements which will effect re - injection effect. Relationship between re - injection rate and re - injection pressure are determined as well in this paper. Through this experiment, it is proved that re - injection is an effective method in soluting problems caused by geothermal resource exploration.