水化学因素对集输管线腐蚀的影响

Effect of Water Chemistry on Corrosion of Oil Pipelines

摘要: 用电化学方法研究了水化学因素对套管钢在模拟油田水中腐蚀的影响,包括亚硫酸钠除氧效果、溶解氧浓度、氯离子浓度、介质温度对腐蚀的影响,得出了将腐蚀速率控制在石油部行业标准SY5329-88中规定的腐蚀速率的临界溶氧浓度、氯离子浓度和温度值。

Abstract: The influence of water chemistry factors on corrosion of oil pipeline steel in simulated water has been studied by electrochemical method,including discharging of oxygen by Na₂SO₃,dissolved oxygen,concentration of Cl^- and temperature.The critical values of dissolved oxygen, Cl^- concentration and temperature below which corrosion rate will not exceed the confined value of Standard SY5329-88 have been obtained.