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文中分析了聚驱后纵向剩余油的分布规律,在真实的孔隙空间研究的基础上,建立了地层孔隙与喉道连通的随机网络模型,给出了MATLAB计算程序,并根据随机模型得到的结果,制作物理模型,并依照改进后的方法进行实验。通过注入聚合物固定剂、采用多段塞平行聚能以及优化注聚合物参数等方法,减少了调剖剂对中低渗透层的伤害,避免了后续注入绕过已建立的油墙问题,同时还进行了经济方面的优化。
Based on the study of the real pore space, a stochastic network model is established for the connection of formation porosity and throat. The calculation program of MATLAB is given. Based on the results of stochastic model , Making a physical model, and experimenting with the improved method. By injection of polymer fixatives, parallel multistage plugging and optimization of polymer injection parameters, the profile control agent reduces damage to the medium and low permeable layers and avoids the problem of subsequent injection bypassing the established oil wall, Economic optimization.