中深层地热能开发利用技术进展及展望

Progress and Prospect of Medium Deep Geothermal Energy Exploitation and Utilization Technologies

我国中深层地热能开发利用强度和广度正在持续加大,技术水平不断提高,正在向着更科学、更高效、资源节约化、技术集成化的方向发展。在总结中深层地热能开发利用技术方法的基础上,进行了技术分类,划分为二类六型,分析了各类型技术方法的优缺点,提出了目前中深层地热能开发利用比较粗放、勘查精度不高、深井换热效率低等问题。从勘查、评价、利用、回灌四个方面进行了展望。

Medium deep geothermal energy exploitation and utilization intensity and scope in China are in sustained growth;technical level improved constantly and developed toward more scientific,efficient,resources economizing and technology integration orientation.Based on medium deep geothermal energy exploitation and utilization approaches summary have carried out technological classification,partitioned into two categories and six types,analyzed advantages and disadvantages of various technological types.Pointed out medium deep geothermal energy exploitation and utilization have issues of rather slipshod,exploration accuracy not high,deep well heat transfer efficiency low etc.Finally the paper has carried out prospect from four aspects of exploration,assessment,utilization and recharge.