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- W2374778840 abstract "Based on the results of experimental and numerical simulation,the performance of steam(hot water)-air flooding and air assisted cyclic steam stimulation are investigated,and the EOR principles of air assisted cyclic steam stimulation are discussed.The results show that,the displacement efficiency of hot water flooding at 100 ℃is decreased when the air is injected,and the recovery efficiency difference between steam-air flooding and steam flooding at 200℃is not evident.The viscosity of recovered heavy oil of 100℃ hot water-air flooding is 20.43% higher than that of hot water flooding,the viscosity of recovered heavy oil of 200 ℃ steam-air flooding is increased 10.80% than that of 200 ℃ steam flooding.The asphaltene content of recovered heavy oil in steam(hot water)-air flooding is higher than that of steam(or hot water)flooding,while the resin content is equivalent.The produced oxygen content in all the experiments are lower than 3%,the content of CO2 is 3% ~5%.The injection of air during the process of steam stimulation has an obvious effect of increasing pressure,the profile modification and stimulation,the effect of increasing pressure and stimulation is equal to that of N2 assisted steam stimulation,the periodic production than the steam huff and puff can improve 20%~30%.The more times of air assisted CSS,the better the recovery efficiency is." @default.
- W2374778840 created "2016-06-24" @default.
- W2374778840 creator A5085322152 @default.
- W2374778840 date "2015-01-01" @default.
- W2374778840 modified "2023-09-26" @default.
- W2374778840 title "Research on EOR principles of air assisted CSS" @default.
- W2374778840 hasPublicationYear "2015" @default.
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