安全与环境工程2025，Vol.32Issue(4)：1-11,11.DOI:10.13578/j.cnki.issn.1671-1556.20241102
超临界二氧化碳增强型地热系统研究综述
Review of supercritical CO2 enhanced geothermal systems:Research progress and future directions
摘要
Abstract
With the accelerated progression of global climate change and energy transition,the supercritical carbon dioxide-enhanced geothermal system(CO2-EGS)has become a research hotspot in the field of geothermal development due to its dual advantages of efficient heat extraction and geological carbon sequestration.This paper systematically reviews the development trajectory of CO2-EGS technology,with a focus on its research progress in thermal storage characteristics,reservoir stability,and economic feasibility.Compared to traditional water-based enhanced geothermal systems,supercritical CO2 as a working fluid demonstrates low viscosity,high mobility,and excellent thermal conductivity,which not only improves the heat extraction efficiency of the reservoir but also effectively reduces reservoir damage and equipment corrosion risks.A review of current research indicates that although CO2-EGS technology still faces challenges in improving thermal storage performance,ensuring reservoir stability,and controlling costs in practical engineering applications,it holds great potential to play a significant role in achieving global energy transition and carbon neutrality through in-depth studies on optimizing thermal storage efficiency,reservoir response mechanisms,economic evaluations,and design improvements.The optimization of fracture network design under complex geological conditions,the dynamic evolution of reservoir performance during long-term injection and production,and the integration of multi-energy complementary technologies are key directions for the future development of CO2-EGS.关键词
超临界CO2/增强型地热系统(EGS)/储热性能优化/储层稳定性/经济性分析Key words
supercritical CO2/enhanced geothermal system(EGS)/optimization design/reservoir stability/economic analysis分类
资源环境引用本文复制引用
秦佐己,金轶斌,胡俊杰,王全荣,丁雁..超临界二氧化碳增强型地热系统研究综述[J].安全与环境工程,2025,32(4):1-11,11.基金项目
国家自然科学基金项目(52406161、42222704、U24A20596) （52406161、42222704、U24A20596）
中国地质大学(武汉)"地大学者"人才岗位科研启动经费资助项目(2020088) （武汉）
中央高校基本科研业务费专项资金资助项目(CUG240616) （CUG240616）
地热资源勘查与开发利用山西省重点实验室开放课题基金项目(SX202203) （SX202203）
广东省基础与应用基础研究基金项目(2023A1515110438) （2023A1515110438）
