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氰凝是一种聚氨酯类的化学灌浆材料。由于它与水反应速度快，在应用于油田堵水和封窜时施工较为困难。为此，本文对氰凝进行了改性并探讨了改性后氰凝的性能
Cyanide condensate is a kind of polyurethane chemical grouting material. Because of its fast reaction with water, it is difficult to apply it to water blocking and sealing. Therefore, this paper modified the cyanide condensation and discussed the performance of the modified cyanide condensation