运用CO₂作为工质进行热储层的压裂改造、循环携热及地质封存，将成为干热岩地热资源开发利用的新兴技术。众多研究发现，CO₂具有较强的采热能力，且不易与热储层发生化学反应，同时还可获得地质封存的附加效益，这对地热资源的开发及节能减排具有重要意义。简要介绍了干热岩的传统开发方式，并结合国内外相关研究现状分析了CO₂作为工质的优势及需要优化和解决的问题，以期能为我国干热岩资源的开发利用提供帮助。

It will be a new technology for the development and utilization of hot dry rock (HDR) geothermal energy by using CO₂ as a working medium in fracturing,circulation heat carrying and geological sequestration.It is found by many studies that CO₂ has a strong heat collecting ability,and is not easy to react with thermal reservoir.Besides,it can also give the additional benefits of geological storage,which is of great significance to the development of geothermal resources,and energy conservation and emission reduction.This paper introduces briefly the traditional development modes of HDR,and analyzes the advantages of CO₂ as a working medium and the problems that need to be optimized and solved,in order to provide assistance for the development and utilization of HDR resources in China.

郭亚伟(1990-),男,硕士生,研究方向为CO₂地质封存与资源化利用,18272736916,1191415217@qq.com