埋地输油管道腐蚀剩余寿命预测  

Residual Life Prediction Method of Corroded Buried Oil Pipeline

作　　者：程远鹏[1] 白羽[1] 李小艳[1] 范桓[2] 

机构地区：[1]长江大学石油工程学院,湖北荆州434023 [2]中国石油管道学院管道运输系,河北廊坊065000

出　　处：《压力容器》2009年第2期30-34,共5页Pressure Vessel Technology

摘　　要：针对埋地输油管道的工作特点,研究了长输管道沿线的内压分布,在此基础上建立了基于ASME-B31G标准的腐蚀缺陷极限尺寸模型;根据埋地管道腐蚀失效的特点,以电化学理论为基础,建立了腐蚀缺陷的腐蚀速率模型;将腐蚀缺陷极限尺寸模型与腐蚀速率模型相结合,提出了一种输油管道腐蚀剩余寿命预测模型。After researching on buried oil pipeline＇s operation feature, this paper analysed the internal pressure along oil pipeline, and the limit size model of corrosion defects was established based upon ASME - B31G. According to the corrosion failure characteristics of buried oil pipeline, electrochemical corrosion rate of the flaw was derived. A new method of the residual life prediction of buried pipeline was finally developed based on the corrosion rate model and limit size model of corrosion defects.

关 键 词：埋地管道 腐蚀 剩余寿命 腐蚀速率 电化学模型 

分 类 号：TE832[石油与天然气工程—油气储运工程]