Research and application of gas tracer monitoring technology in CO2 capture,utilization and storage(CCUS)technology demonstration blocks
CO2 capture,utilization,and storage(CCUS)technology can reduce greenhouse gas emissions on a large scale.CO2 flooding and storage in China are mainly used in low-permeability oil reservoirs,with high mixing pressure(over 30 MPa)and significant pressure drop between injection and production wells.The nu-merical simulation method can provide a schematic diagram of the distribution of CO2 between wells,but it cannot quantitatively and timely describe the distribution pattern of CO2,making it difficult to describe the dis-placement front.At the same time,the phenomenon of CO2 gas channeling is more prominent,which restricts the efficient development of oil reservoirs.Therefore,research on CO2 gas tracer monitoring technology be-tween wells was carried out,and through the evaluation and optimization of CO2 gas tracers,the injection pro-cess was improved.Monitoring data analysis was used to assist decision-making,achieving effective monitoring of gas between injection and production wells,clarifying the distribution pattern of CO2 between injection and production wells,accurately predicting the direction of gas channeling,preventing risks and environmental pol-lution,and providing strong support for CCUS injection and production control and gas channeling control.
CCUSgas driveevaluation and optimizationtracer monitoringCO2
NETL
NSTL
万方数据
