利津油田注水结垢分析及防治

针对利津油田欠注井和欠注层多的问题，对注入水水质和油层伤害程度进行了分析，并应用饱和系数法对注入水的结垢趋势进行了分析。结果表明，利津油田目前注水地层伤害严重。通过注水站内化学处理和对注水工艺流程的改造，使注入水水质得到明显的提高，沿程至井口水质稳定，大大改善了该油田的开发效果。

Analysis and prevention on scaling by water injection in Lijin Oiffeild.

In view of the excessive under-injection wells and formations,the quality of injection water was analyzed and the laboratory test was performed on the formation damage by the injection water in Lijin Oilfield.The scaling tendency of the injection water in Lijin Oilfield was also analyzed using saturation coefficient method. The result shows that the damage of water injection formation in Lijin Oilfield is very serious.After chemical treatment of the in- jection station and technical process reform of the in...