中国CCUS-EOR项目发展现状与建议OACHSSCD

Carbon capture,utilization,and storage-enhanced oil recovery(CCUS-EOR)projects have become a strategic choice and critical pathway for oil companies to achieve development with green and low-carbon synergy across upstream and downstream operations.During the 14th Five-Year Plan period,Chinese oil companies have initiated large-scale CCUS-EOR projects which are currently in a critical transition phase from pilot field tests to large-scale development.This paper reviews the status of CCUS-EOR development in China,and summarizes practical insights,noting that multi-type experimentation serves as an important approach for gaining a thorough understanding of CO2 flooding mechanisms.It proposes that continually expand the scope of project trials to deepen geological understanding of CO2 flooding applicability across various reservoir types,strengthen top-level design for the full industrial chain to promote coordinated development of the CCUS industry chain in key basins based on reservoir conditions,source-sink matching,and technological maturity,further develop key technologies across the entire industrial chain to enable large-scale and profitable development,formulate effective measures to reduce full-cycle costs of CCUS-EOR projects and enhance economic viability,and establish robust management and assessment mechanisms to ensure the steady and sustainable progress of CCUS-EOR since oil companies currently face such issues and challenges as the need for a deeper understanding of reservoir suitability criteria for CO2 flooding technology,the need for innovative improvements in cross-industry chain collaboration,and the necessity for further technological advancements in CCUS-EOR.