Evaluation of Well Inhibitors in Naoer Oilfield

For the corrosion status of Naoer oilfield,the commonly used inhibitors CT2-4,HYZ-1,CT5-9 and CD-2 were screened and evaluated by laboratory and field experiments.The results showed that CT2-4 was suitable to Naoer oilfield and had good inhibition efficiency,the average corrosion inhibition efficiency in seven experimental wells was 86.7%.And after addition of CT2-4,the iron ions in the produced fluid of well N6-19 had been reduced from 56.7 mg/L to less than 1 mg/L,and kept good stability.