The difficulty that fracturing fluids flow back from the well makes a damage to the formation. CO2 foam fracturing fluids have the advantages in good capacity of carrying sand, low damage to formation, quick flowback and high flowback rate.
而CO2压裂具有水基压裂液用量少,对地层和裂缝伤害小、携砂性能好,返排快、返排率高等优点。
参考来源 - 苏里格气田砂岩储层CO·2,447,543篇论文数据，部分数据来源于NoteExpress
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