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本文研究了三种复合冻胶堵调剂体系：（1）HPAM─苯酚─醛体系；（2）HPAM─脲─醛体系；（3）HPAM─糠醇─醛体系。介绍三种体系的典型配方，具体考察了体系对地层环境如高矿化度和原油的表面活性的适应性。实验结果表明：体系成胶前具有良好的可泵性，所成冻胶在75℃时30天不破胶、不析水，体现出较好的冻胶稳定性，成胶后具有很高的强度（成胶剪切强度≥125Pa·s），对高渗透率岩心的堵塞程度也较高。研究了HPAM的分子量、水解度、浓度对所形成冻胶与地层岩石的粘附状态的影响。施工时在前置液中加入适量、合适的促凝剂，以避免配方中反应成分被地层流体稀释而不成胶，以提高成功率。
In this paper, three kinds of complex jelly plugging agent system were studied: (1) HPAM-phenol-aldehyde system; (2) HPAM-urea-aldehyde system; (3) HPAM-furfuryl alcohol aldehyde system. The typical formulations of the three systems are introduced, specifically examining the adaptability of the system to formation environments such as high salinity and the surface activity of crude oils. The experimental results show that the system has good pumpability before gelling, and the gelatinized gel has no gel breaking at 75 ℃ for 30 days, does not separate water and shows better gelatin stability, and has high strength after gelling (Plastic shear strength ≥125Pa · s), the high permeability of the core blockage is also higher. The effect of molecular weight, degree of hydrolysis and concentration of HPAM on the adhesion of gelatine to formation rock was studied. During construction, add appropriate amount of appropriate coagulant in the pre-fluid to avoid the reaction components in the formulation being diluted by the formation fluid and not gelatinized to improve the success rate.