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本文利用我国自行研制的ASP数值模拟软件,采用正韵律二维剖面地质模型,分别模拟了水驱、聚合物驱、三元复合驱的驱油过程,分层计算了采收率、剩余油饱和度、波及效率和驱替效率,进行了指标对比。通过研究表明对于非均质严重的油藏,不同层段的波及效率和驱替效率所起的作用不同。高渗层以提高驱替效率为主,低渗层以提高波及效率为主,中等渗透层提高波及效率和提高驱替效率相当。由于水驱后,剩余油大部分集中在上部,低渗透层是提高采收率主要潜力所在,提高上部低渗透层的波及效率对于提高总体采收率具有重要的作用。对于非均质严重的油藏,先调剖再注三元复合体系段塞是提高化学驱油效果的重要途径
In this paper, using the ASP numerical simulation software developed by our country, the positive rhythm two-dimensional profile geologic model was used to simulate the oil displacement process of water flooding, polymer flooding and ternary compound flooding separately. The oil recovery rate, remaining oil saturation Degree, spread efficiency and displacement efficiency, the index comparison. The research shows that for non-homogeneous reservoirs, the runoff efficiency and displacement efficiency of different intervals are different. High permeability layer to improve the displacement efficiency of the main low permeability layer to improve the sweep efficiency, the middle permeability layer to improve the sweep efficiency and improve the displacement efficiency. Due to the water flooding, most of the remaining oil is concentrated in the upper part. The low permeability layer is the main potential for enhancing oil recovery. Improving the drainage efficiency of the upper low permeability layer plays an important role in improving overall oil recovery. For non-homogeneous reservoirs, it is an important way to improve the chemical flooding effect by re-injecting the slug of the ternary composite system