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本文利用实验方法对几种聚合物凝胶降低水相渗透率大于油相的机理进行了验证,结果表明。这种渗透率不成比例下降的原因并非重力和润滑作用所致,也不是聚合物凝胶收缩和膨胀作用所引起。尽管润湿性对渗透率不成比例下降存在一定影响,但它不是根本原因。油基凝胶的实验结果表明,油水在多孔介质内分道流动可能是渗透率不成比例下降的主要原因。但还需做进一步的工作加以验证。
In this paper, the experimental methods were used to verify the mechanism that several polymer gels lower the water phase permeability than the oil phase. The reason for this disproportionate decline in permeability is not due to gravity and lubrication nor is it due to shrinkage and swelling of the polymer gel. Although wettability has an effect on the disproportionate decline in permeability, it is not the root cause. The experimental results of oil-based gels show that the oil-water flow in porous media may be the main reason for the disproportionate decrease of permeability. But further work needs to be done to verify.