本文探讨了二氧化硫脲对PAM和HPAM凝胶化的影响，并提出用二氧化硫脲代替硫代硫酸钠作为铬凝胶体系堵水剂配方中的还原剂。
Effect of thiourea dioxide on gelatination of PAM and HPAM was investigated and it was suggested that thiourea dioxide be used as a reductant in the composition of chromium gelling system for water shut off instead of sodium thiosulfate .
配方还原