Prediction of residual life for oil and gas pipe with local corroded defects

摘要：

According to the corrosion failure characteristics of buried oil and gas pipelines, electrochemical corrosion rates of the local corrosion and pitting corrosion flaws were derived by Faradays laws, and the limit size model of corrosion defects was established based upon ASME-B31G criteria. A new method of the residual life prediction for buried pipelines was finally developed based on the corrosion rate model and limit size model of corrosion defects, and the prediction method was validated with an example and the results showed that the method is reliable for pipelines with corroded defects.

关键词： Residual life Corroded pipelines Electrochemical model Life prediction

作者: Wenhe Wang Jun Yi Tieming Liu

作者单位: College of Safety Engineering, Chongqing University of Science & Technology, Chongqing 401331, China China Academy of Safety Science and Technology, Being/ing 100012, China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 1078-1085

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）