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一种三次采油方法,从研制到应用,必须进行大量的室内实验研究工作;有关三次采油的数值模拟研究,也需要室内提供一系列参数。鉴于多数三次采油方法经常伴随着物理—化学过程,要求实验用岩样具有稳定的表面性质和稳定的几何特征,以便尽量减小孔隙结构对实验结果的影响。但这些要求,无论是天然岩心还是人造石英砂胶结模型都难以达到。这些岩样平行实验驱油效率的绝对偏差一般都超过3％,重复利用实验也未获得成功。所以,在三次采油室内实验研究中,多孔介质的模拟技术乃是一个没有解决的问题。
A tertiary recovery method, from development to application, must carry out a large number of laboratory experimental work; the third oil recovery numerical simulation study, but also need to provide a series of indoor parameters. Since most tertiary recovery methods are often accompanied by physico-chemical processes, experimental rock samples are required to have stable surface properties and stable geometry in order to minimize the effect of pore structure on experimental results. However, these requirements, whether natural core or synthetic quartz sand cement model are difficult to achieve. The absolute deviations of the efficiency of parallel experiments in these rock samples are generally over 3%, and the repeated use of experiments has not been successful. Therefore, in the third oil laboratory experiments, the simulation of porous media technology is an unsolved problem.