硫脲基咪唑啉季铵盐缓蚀剂对X80管线钢腐蚀的影响

白云龙, 沈国良, 覃清钰, 韦博鑫, 于长坤, 许进, 孙成

Effect of Thiourea Imidazoline Quaternary Ammonium Salt Corrosion Inhibitor on Corrosion of X80 Pipeline Steel

BAI Yunlong, SHEN Guoliang, QIN Qingyu, WEI Boxin, YU Changkun, XU Jin, SUN Cheng

表3 X80管线钢在油田模拟水溶液中的离子电流密度值 (mA·cm-2)

Table 3 Current density of X80 pipeline steel in simulated oil-field water with or without corrosion inhibitor

Inhibitor pH 0 h 1 h 48 h Blank 3.5 7.81 6.44 3.85 80 mg/L 2.02 1.99 0.96 Blank 7.2 6.10 2.73 1.58 80 mg/L 1.16 0.78 0.32 Blank 10.5 9.30 3.68 2.89 80 mg/L 4.12 4.01 2.25