中文摘要：

针对辽河油田注水管线结垢腐蚀严重的问题，对水质进行分析，发现辽河油田水质偏碱性含盐量、总碱度、矿化度及Cl^-含量较高，Ca^2＋含量较其它成垢阳离子高；对现场垢样品进行X射线衍射（XRD）检测，垢样品中主要是CaCO3垢，其次为硫酸盐垢、碳酸盐垢、硅酸盐垢和Fe2O3等。阻垢缓蚀剂TH～607B的现场应用结果表明，当阻垢缓蚀剂浓度为45mg/L时，阻垢率为90．93％～95．96％，缓蚀率为90．97％～95．33％，腐蚀速率为0．04～O．07mm／a。

英文摘要：

Serious scaling and corrosion occurred in the water injection line of Liaohe oil field. Local water and on site scale samples were analyzed. It was found that the water of Liaohe oil field was slightly alkaline, and its saltness, alkalinity, mineralization degree, chloride ion were relatively high, especially the content of calcium cation was much higher than that of other cations. The XRD results of scale samples showed that calcium carbonate was the most, with a little of sulfates, carbonates, silicates and rust. Based on simulation experiments,TH-607B scale and corrosion inhibitor was selected for field application trial. When the concentration of TH-607B was 45 mg/L,the anti-scaling rate was 90.93%--95.96% ,anti-corrosive rate was 90.97-95.33% and corrosion rate was only 0.04--0. 07 mm/a.