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尽管用于注入井剖面改进的凝胶处理方法早已为人们熟悉，但是其处理费用高，并且在低渗地区注入凝胶填充物容易引起吸收能力下降。本文对地下产生的适合于长期水驱的泡沫凝胶阻挡层进行了研究。因为它具有一定程度的桥堵中间作用，并且所需要的聚合物远远小于膨胀凝胶所需量。显微观察表明，泡沫凝胶阻挡层最初是不可渗的，但是当驱替压力超过其临界值时就会破裂，这一临界压力随泡沫质量、渗透性和凝胶特性不同而不同。
Although gel processing methods for injection well profile improvement have long been known, their processing costs are high, and injection of gel fillers in the hypotonic region tends to cause a decrease in absorbency. In this paper, the foam gel barrier suitable for long-term water flooding produced underground was studied. Because it has a degree of bridging intermediate effect, and the amount of polymer required is much less than the amount required to expand the gel. Microscopic observation showed that the foam gel barrier was initially impermeable, but ruptured when the displacement pressure exceeded its critical value, which varied with foam quality, permeability and gel properties.