基于内检测数据的管道完整性评价

Pipeline Integrity Evaluation Based on Internal Inspection Data

阐述了开展管道完整性评价前需要收集的数据及其重要性,分析了内检测识别出的各类管道缺陷沿里程的分布,对典型问题和特殊缺陷进行了原因分析,研究了金属损失、焊缝异常、凹陷等缺陷的评价方法。对特殊管段安全分析方法进行研究,确定了腐蚀剩余寿命预测方法,最后提出了影响评价结果的关键问题,形成了基于内检测数据的管道完整性评价模式。

This paper expounds the data to be collected before pipeline integrity evaluation and its importance,analyzes the distribution of various pipeline defects identified by internal inspection along the mileage,analyzes the producing causes of typical problems and special defects,and studies the evaluation methods of defects such as metal loss,weld abnormality and dent.The safety analysis meth⁃od of special pipe section is studied,and the prediction method of pipeline corrosion residual life is determined.Finally,the key prob⁃lems affecting the evaluation results are put forward,and a pipeline integrity evaluation model based on internal inspection data is formed.