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研究了Ｎａ２ＣＯ３／ＨＰＡＭ复合驱介质中溶解氧，以及由碳钢腐蚀产生的Ｆｅ２＋和Ｆｅ３＋等对部分水解聚丙烯酰胺（ＨＰＡＭ）降解及粘度变化的影响，并讨论了其作用机制，发现在无氧气氛下腐蚀所产生的Ｆｅ２＋对ＨＰＡＭ的粘度变化影响不大，而在曝氧环境中，由于Ｆｅ２＋自动氧化成Ｆｅ３＋产生了·ＯＨ自由基，使ＨＰＡＭ主链断裂而降解，粘度下降很大，降解后的ＨＰＡＭ分子链由于Ｆｅ３＋的交联作用而沉降．
The effect of dissolved oxygen in Na2CO3 / HPAM composite driving media and the degradation of partially hydrolyzed polyacrylamide (HPAM) and viscosity on the viscosity of Fe2 + and Fe3 + produced by carbon steel corrosion was studied. The mechanism of action was discussed. Under the atmosphere of oxygen, the Fe2 + produced by the corrosion had little effect on the viscosity change of HPAM. However, in the environment of oxygen exposure, the oxidation of Fe2 + to Fe3 + resulted in the formation of · OH radicals, which led to the degradation of the main chain of HPAM, After the HPAM molecular chain due to the crosslinking of Fe3 + and settlement.