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在这篇文章中，我们研究了在作为封诸剂时，泡沫是否能显示出比凝胶更优越的处理性能。尤其考察了极限毛细管压力的概念是否可以在高渗透层中形成稳定的、低流度泡沫，同时在低渗透层中能防止泡沫的产生及伤害。使用C14～16磺化α－烯烃，测量了一种氮气泡沫在渗透率为7.5～900mD范围岩芯中的流度(回压750lb／ln2，104°F），使用的泡沫量为50％～95％，渗流速率0．5～100ft/d。我们广泛地研究了泡沫处理后，注盐水驱替时的残余阻力系数，实验研究结果表明泡沫比凝胶具有更优越的处理性能。该研究还发现：和像水一样交联体系比较，当渗透率在7.5mD以下的低渗透层和80mD以上的高渗透层中，泡沫显示出比较好的处理性能。
In this article, we investigated whether foams exhibit superior handling properties over gels when used as encapsulants. In particular, it was examined whether the concept of ultimate capillary pressure can form a stable, low-flow foam in the high-permeability layer while preventing foam formation and damage in the low-permeability layer. Using a sulfonated α-olefin of C14-16, the flow of a nitrogen foam in a core with a permeability of 7.5-900 mD (back pressure 750 lb / ln2, 104 ° F) was measured and the amount of foam used was 50% 95%, percolation rate 0.5 ~ 100ft / d. We have extensively studied the residual drag coefficient after foam treatment with saline flooding, and experimental results show that the foam has superior handling properties over gels. The study also found that foams show better handling properties when compared to water-based cross-linking systems with low permeation rates below 7.5 mD and high permeability above 80 mD.