Special issue on, Carbon Capture, Utilization and Storage (CCUS): Technological developments and future opportunities for petroleum industry

Carbon Capture,Utilization and Storage(CCUS)plays a key role in addressing two important problems of our life-time:(i)climate-change and(ii)energy security.An International Energy Agency(IEA)study reports that there is a significant opportunity of storing up to 360 Gt of CO2 through enhanced oil recovery(EOR)applications over the next 50 years.This is also an opportunity to potentially and simultaneously increase oil production by up to 375 billion barrels at the same time[1].From the perspective of life cycle assessment,the total emission of CO2 per unit energy produced from the oil produced by CO2 EOR flooding is much less than that from natural gas[2].