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S/P二元复合驱可通过增加注入水粘度、降低油水界面张力改善驱油效果,提高原油采收率。该文利用Eclipse油藏数值模拟软件,讨论不同渗透率变异系数下,非均质性对二元复合驱各单元层驱油效果及动态特征的影响。结果表明:各单元层的采收率和含水率随非均质变异系数Vk的增加,对低渗层位影响较大,而对高渗层位影响不是很明显,尤其Vk在0.5～0.72的范围内变化时,对低渗层位的影响最为显著。
S / P binary composite flooding can improve the oil displacement by increasing the viscosity of injected water and reducing the interfacial tension between oil and water to improve the recovery rate of crude oil. In this paper, Eclipse reservoir numerical simulation software is used to discuss the effect of heterogeneity on flooding and dynamic characteristics of each unit flooding of dual compound flooding under different permeability variability coefficients. The results show that the recovery rate and moisture content of each unit layer increase with the increase of heterogeneous coefficient of variation Vk, which has a great influence on the low permeability beds, while the effect on the high permeability beds is not obvious. Especially, the Vk is between 0.5 and 0.72 The changes in the range, the impact of low permeability layer the most significant.