Gas Injection Scheme Optimization of Low Pressure and Low Permeability Heavy Oil Reservoir

In low-permeability heavy oil reservoirs,the efficiency of oil recovery with water fiooding process is poor or its development faces the problems of water injection difficulty. The experiment results in laboratory show that flue gas-gas / water alternating flooding and CO2-gas / water alternating flooding can improve effectively EOR. It' s thought as the preferred way of gas injection.