天津地热资源可持续开发利用对策

Sustainable Exploitation and Utilization of Tianjin Geothermal Resources

天津有着十分丰富的地热资源,至2003年底,已有地热井235眼,年开采量2701万m3。但地热资源利用率最高为62.4%,地热尾水回灌率不到8%,基本是一种粗放的开发利用模式。文章从实现地热资源可持续开发利用角度出发,针对天津地区不同热储层的特征,提出适宜的利用方式,提高地热利用率。而且指出必须走回灌开发道路,增加回灌井,提高回灌率是实现地热资源可持续开发利用的重要保障。

Tianjin Autonomous Region is rich in geothermal resources.By the end of 2003,there were 235 geothermal well with annual capacity of mining 27.01million/ m3.However,the pattern for exploitation and utilization is extensive—— the maximum availability is 62.4% and reinjection by using geothermal tailing water is less than 8%.According to the different characteristics of container rock in Tianjin region,the paper introduces the appropriate methods for promoting the availability of geothermal.It points out that increasing reinjection well and promoting reinjection result can ensure sustainable exploitation and utilization of geothermal resources.