原油含水量和流速对X60钢管道腐蚀行为的影响  

Effect of Water Content and Flow Rate of Crude Oil on Corrosion Behavior of Pipeline Steel X60

作　　者：彭伟华 苗健 高伟[1] 张国超[3] 方晓君 孙育禄[3] 

机构地区：[1]中国石油大学(北京)材料科学与工程系,北京102499 [2]中国石油集团石油管工程技术研究院,陕西西安710065 [3]西安石油大学材料科学与工程系,陕西西安710065

出　　处：《材料保护》2012年第5期60-62,87-88,共3页Materials Protection

摘　　要：以往用盐水加腐蚀性物质模拟原油腐蚀环境以研究输油管道腐蚀行为的方法不准确。以中东混合原油为腐蚀介质,利用高温高压釜装置模拟输油管道实际状况,采用失重法、扫描电镜(SEM)、能谱仪研究了原油含水量和流速对X60钢腐蚀行为的影响。结果表明:随着原油含水量和流速的提高,X60钢的腐蚀速率不断增大;原油中的S元素是诱发和促进X60钢点蚀的重要因素。The effect of water content and flow rate of crude oil on the corrosion behavior of X60 pipeline steel was studied by using weight loss method,scanning electron microscopic observation and energy dispersive spectrometric measurement,where mixed crude oil produced in Middle East was used as the corrosive medium,and a high-temperature and high-pressure autoclave was adopted to simulate the actual working condition of oil pipelines.Results show that the corrosion rate of X60 steel continuously rises with increasing water content and flow rate of the crude oil,and S element in the crude oil plays a dominant action in inducing and accelerating pitting of the pipeline steel.

关 键 词：原油 含水量 流速 X60钢 腐蚀速率 

分 类 号：TG172[金属学及工艺—金属表面处理]