油田流动污水介质中溶解氧对A3钢腐蚀行为的影响  

Effect of Dissolve Oxygen in the Present of Oilfield Flowing Sewage on Corrosion of Steel A3

作　　者：龙媛媛[1] 张春茂[2] 吕德东[1] 彭海泉[3] 

机构地区：[1]胜利油田技术检测中心腐蚀与防护研究所,山东东营257000 [2]胜利油田技术检测中心安全环保研究中心,山东东营257000 [3]中国科学院金属研究所金属腐蚀与防护国家重点实验室,辽宁沈阳110016

出　　处：《管道技术与设备》2006年第4期37-38,共2页Pipeline Technique and Equipment

摘　　要：通过腐蚀管流动态模拟装置,模拟现场工艺条件,研究了暴氧和除氧条件下,油田流动污水介质中A3钢的腐蚀行为。用失重法和交流阻抗、极化曲线方法,揭示了A3钢在油田污水介质中腐蚀的电化学规律。结果表明:A3钢在油田污水介质中的腐蚀受阴极氧的去极化控制,流动过程和溶解氧共同作用,极大地加速了油田污水介质对A3钢的腐蚀性。According to simulating the field technological condition, the effect of dissolve oxygen in the present of oil-field flowing sewage on corrosion of steel A3 with oxygen and without oxygen were studied with the corrosion flow loop dynamic simulation. The corrosion electrochemical rate of steel A3 with oil-field sewage was revealed by mass loss method, AC impedance method and polarization curve method, the resuts indicate that the corrosion of steel A3 with oil-field flowing sewage was the oxygen depolarization of cathode, and the corrosion was speeded up greatly with the effect of flowing and dissolve oxwen.

关 键 词：管流动态模拟装置 溶解氧 A3钢 交流阻抗 极化曲线 

分 类 号：TE988[石油与天然气工程—石油机械设备]