Study on Physical Simulation Experiments of Different Chemical Displacement Systems
In the reservoir condition of Liaohe oil field, the indoor physical simulation experiments of polymer / surfactant binary combination flooding and polymer / surfactant / alkali (ASP) flooding in the artificial cores have been conducted. The results show that enhanced oil recovery of polymer flooding is about 24.4%, by utilizing experiment project that polymer molecular weight is 19 million, main slug concentration is 1500mg/L. Binary flooding system that molecular weight of polymer is 19 million, main slug concentration is 1500mg/L, 0.3% surfactant YR has improved the oil recovery by 30.1%. The ASP flooding system (19 million 1500mg/L polymer +0.3% surfactant SS+ 1.2%Na2CO3) has improved the oil recovery by 28.4%. It can be seen that the binary flooding system is best.
Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang
W. X. Wu et al., "Study on Physical Simulation Experiments of Different Chemical Displacement Systems", Advanced Materials Research, Vols. 201-203, pp. 2562-2566, 2011