Corrosion and scaling control of reinjection water well at Shuanghe west district in Yongning oil production plant

Corrosion and scaling in reinjection water system is a serious problem at Shuanghe west district in Yongning oilfield, which affects normal production. Oxygen, bacteria and scaling dietary cationanion exist in water cause the problem. Corrosion and scaling problem was resolved by adding pH regulator, deoxidant, bactericide, corrosion and scaling inhibitor to the reinjection water. The corrosion and scaling degree of the water is weakened, the corrosion rate decreases 89.7% and the scaling degree decreases 72.5%, which satisfy the reinjection standard requirement.