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发明公开
CN107250320A 聚合物的延缓胶凝化 审中-实审

聚合物的延缓胶凝化
摘要：
本公开涉及通过将含有羧酸根的聚合物溶液、凝胶延缓聚合物和胶凝剂依次或共同注入到烃储层中来延缓注水法中聚合物的胶凝化的方法和组合物。观察到数周的延缓。
摘要（英）：

The disclosure is directed to methods and compositions delaying the gelation of polymers in water flooding by sequentially or co-injecting a carboxylate-containing polymer solution, a gel-delaying polymer, and gelation agent into a hydrocarbon reservoir. Delays of weeks are observed.

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