CO

2

flooding and sequestration technology can significantly improve crude oil recovery rates while enge. However

the oil displaceabling large-scale CO

2

flooding and sequestration process is accompanied by various CO

2

leakage risks. In response to the lack of previous CO

2

leakage risk management systems

especially the absence of systems based on online monitoring that support dynamic risk management

research has been conducted on the construction of a CO

2

flooding and sequestration leakage risk management system. Based on the construction of CO

2

flooding and storage leakage risk management syst

em

a dynamic CO

2

leakage risk management system integrating multi-environment real-time risk identification and assessment

multi-space risk prediction

multi-level risk early warning and whole process risk control was developed and applied to the CO

2

flooding and storage demonstration project of Yanchang Petroleum in Ordos Basin. Case studies demonstrate that the developed CO

2

leakage risk management system can dynamically identify various leakage risks throughout the CO

2

flooding and sequestration process across all spaces

effectively supporting the dynamic management of leakage risks. This provides comprehensive and timely safety assurance for CO

2

flooding and sequestration projects

ensuring that potential risks are managed and mitigated effectively to maintain the integrity and success of these projects.