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本文分析了河南南阳魏岗油田清水、污水、1:1清污混合水的水质特征,对影响腐蚀速度的各种因素-S~(2-),pH值、Cl~-和溶解氧分别进行了实验研究,从而确定了魏岗油田1:1清污混注水的合适pH值,利用混注水所含S~(2-)与O_2的氧化还原反应达到除氧降S~(2-)目的。并筛选了合适的防垢剂,杀菌剂配方经现场11口井一年多的混注实验看出,注水压力未发生过大的变化。许多井注水量还有所上升,清污水混注效果较好
In this paper, the water quality characteristics of fresh water, sewage and 1: 1 clean water in Weigang Oilfield in Nanyang, Henan Province were analyzed. Various factors influencing the corrosion rate, such as -S 2 -, pH value, Cl ~ - and dissolved oxygen In order to confirm the suitable pH value of 1: 1 clean water in Weigang oilfield, the purpose of deoxidizing S ~ (2-) was achieved by the redox reaction of S ~ (2-) and O_2 contained in the mixed water. . And screening a suitable anti-scaling agent, fungicide formula by the field 11 wells more than a year of mixed injection experiments, water pressure did not occur too much change. Many wells have increased water injection, clear water mixing effect better