CO₂ Flooding In Daqing Oilfield Oilfield Peripheral Test Application

Heral Fuyang reservoir is mainly ultra-low permeability,low mobility,low yield of the reservoir,proven geological reserves of 659 million tons,less than 1.5mD penetration of nearly 400 million tons of reserves,water flooding can not effectively utilized.For effective utilization of such reservoirs,the class of Daqing Oilfield reservoir of carbon dioxide flooding tests carried out.Daqing Oilfield Oilfield peripheral regions of the study area,conduct research experiments and applications of carbon dioxide flooding oil.Mechanism of carbon dioxide flooding of the area,the impact of the factors driving the development of oil and oil displacement mode as carbon dioxide,carbon dioxide flooding of the area to provide a reliable basis for practical applications.Carbon dioxide flooding technology in the periphery of Daqing Oilfield low permeability,low mobility,low yield of the reservoir is tentative application,with the continuous expansion of the experiment,are starting to become a common problem together,mainly in the note before vaporization,quantitative injection,channeling gas oil,oil bar card,wellbore raffinate five big problem,this paper analyzes these five issues,and the corresponding countermeasures.