Flue gas is the gas produced from the flue or chimney during the combustion of carbon-containing fuel.The main components are N2,CO2 and a small amount of O2.After being captured and treated,it is injected into the heavy oil reservoir to supplement the formation energy,expand the sweep range of the steam chamber,and improve the efficiency of steam displacement.Compared with the same period of the conventional huff cycle,the flue gas assisted steam huff has gained 3240 tons of oil,increased the oil-gas ratio by 0.1,achieved good results,and reduced 433 tons of CO2 emissions at the same time.
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