油田采出水中主要腐蚀离子对渗锌碳钢的腐蚀研究

The Inf luence of Majo r Ions on the Co rrosion of#br# Penetrating Zinc Steel in Oil Field Water

1.辽宁石油化工大学石油化工学院,2.辽宁石油化工大学化学与材料科学学院,3.辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001

1. School of Petrochemical Engineering, Liaoning Shihua University, Fushun Liaoning 113001,P.R.China; 

2. School of Chemistry and Materials Science, Liaoning Shihua University, Fushun Liaoning 113001, P. R. China;  3.School of Environmental and Biological Engineering, Liaoning Shihua University, Fushun Liaoning 113001, P. R. China

关键词: 油田采出水 , 渗锌碳钢 , 离子腐蚀 , 腐蚀速率

Adopting static corrosion weight-loss method, the corrosible effect Shengli oilfield produced water containing main ion ingredients (Cl- , Ca2 + , HCO - 3) on the carbon steel and penetrating zinc steel metal materials was studied, and causes of corrosion were also made analysis. The results show that with the concentration of Cl- increasing, the corrosion rate of 20# carbon steel and the penetrating zinc carbon steel is increased. When the content of Ca2 + ions was added, the corrosion rate of 20#carbon steel and the permeability zinc carbon steel also has a increasing trend. HCO - 3 inhibited corrosion rate of 20#carbon steel and then increased; the corrosion resistance of penetrating zinc steel is superior to 20#carbon steel in the simulative oilfield water, the corrosion rate is less than the petroleum industry standard 0.076 mm/a, so penetrating zinc steel metal materials can be used in pipeline of the oilfield.

辽宁省教育厅高等学校创新团队项目(LT2010059);中国石油化工集团公司项目(308028)

10.3696/j.issn.1006-396X.2011.03.008