In today's world, the energy sector has a major impact on the climate. In this process, the share attributable to oil and gas producers is large. The paper shows the prospects of reducing flaring of associated petroleum gas and carbon dioxide emissions by utilization of exhaust (flue) gases for injection into the reservoir to enhance oil recovery. The main industrial sources of exhaust (flue) gases are given. The scope of research on the use of exhaust gases in the development of oil fields with different properties is analyzed. The technology of simultaneous water and gas injection, aimed at the utilization of exhaust gases and increase oil recovery fields, is proposed. The technology of simultaneous water and gas injection is implemented with the use of pump-ejector systems and allows for the simultaneous injection of water and gas into productive formations. The main parameters of pumpejector system are determined for the conditions of a particular field. Keywords: exhaust (fuel) gases utilization; enhanced oil recovery (EOR); SWAG injection; pump-ejector system.
This paper discusses the possibility of utilization of exhaust (flue) gases by injecting them into the reservoir. Currently, injection of flue gases into the reservoir is not a widely used method for increasing oil production compared to CO2 or N2 injection. Most of technologies for injecting water-gas mixture using flue gas as a gas provide for water-alternating-gas injection. Only a few studies discuss simultaneous water-alternating-gas injection using flue gases. Moreover, there are few studies on creating a mixture of water and exhaust gases for co-injection by means of pump-ejecting systems into the reservoir. Therefore, in this work we propose a new improved diagram of the laboratory bench using exhaust (flue) gases to create a water and gas mixture for flue gas-simultaneous water and gas injection by means of pump-ejecting system.
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