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研究了Na2CO3／HPAM复合驱介质中溶解氧、由碳钢腐蚀所产生的Fe2＋和Fe3＋等对部分水解聚丙烯酰胺（HPAM）降解及粘度变化影响。在无氧环境下腐蚀所产生的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 effects of dissolved oxygen in Na2CO3 / HPAM composite driving media, degradation of partially hydrolyzed polyacrylamide (HPAM) and viscosity changes by Fe2 + and Fe3 + from corrosion of carbon steel were studied. The corrosion of Fe2 + in anaerobic environment had little effect on the change of viscosity 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 and the decrease of viscosity Large, degraded HPAM molecular chains were precipitated due to the cross-linking of Fe3 +.