鲁北坳陷区地热资源开发利用关键性问题研究

鲁北坳陷区地热资源丰富,但由于缺乏有效补给来源,长期过量开采将会引起水位持续下降、地热沉降等地质环境问题。本文在总结区内地热资源开发利用现状的基础上,系统研究了最大允许水位降深、合理布井井距、尾水回灌等影响地热资源合理开发利用的关键性问题。可以看出,在以消耗静储量为主的沉积盆地型地热田,通过科学规划,可以实现地热资源的可持续开发利用,为生态文明建设和发展绿色低碳经济提供动力。

Key issues of geothermal resource exploitation and utilization in the depression area of northern Shandong Province

There are abundant geothermal resources in the depression area of northern Shandong Province. However, long-term over-exploitation of these resources would cause some geo-environmental problems, such as continual water level drawdown and land subsidence. This paper analyzes systematically the maximum allowable drawdown, reasonable well spacing and trail water reinjection on the basis of ascertaining the current status of geothermal resource development. The results suggest that sustainable development of geothermal resources in the sedimentary basin fields can be achieved by scientific planning, providing green power for eco-system construction and economic development in this region.