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利用岩心流动试验研究了三种强度不同的高温堵剂的封堵能力，并对影响封堵能力的因素进行了考察，研究了岩心渗透率、注入速度、油水相的影响。结果表明，冻胶类堵剂对水的封堵能力大于对油的封堵能力。这种选择性是由于油、水通过岩心时与冻股的相互作用不同造成的。水通过冻胶处理后的岩心时由于冻胶中的大分子受剪切取向而表现出非牛顿性；油通过冻胶处理后的岩心时，由于不与冻胜发生作用，因而表现出牛顿流体行为。
The plugging ability of three high temperature plugging agents with different strengths was studied by using core flow test. The influencing factors of plugging capacity were also investigated. The effects of core permeability, injection velocity and oil / water phase were studied. The results showed that the plugging agent of jelly plugged water more than blocking the oil. This selectivity is due to the different interactions between oil and water passing through the core and frozen stocks. Newtonian fluid appears when the water passes through the jelly-treated core due to the shearing orientation of the macromolecules in the jelly; when the oil passes through the jelly-treated core, it does not interact with freeze-thaw, behavior.