Page 127 - 无损检测2024年第六期
P. 127
实践经验
实践经验
DOI:10.11973/wsjc202406016
基于漏磁检测的某长输管线内检测数据分析
李鸿鹏
(国家管网集团福建公司,厦门 361113)
摘 要:基于国内某长输管线漏磁内检测获得的内检测数据,对管道缺陷进行分析,得出了管
道金属损失缺陷和环焊缝缺陷的里程分布及缺陷特征,对缺陷产生的原因进行了初步分析。结合
相应的规范和评价方法,进行了含缺陷管段的适用性评价,对含缺陷管段的剩余寿命进行了预测,
给出了管线进行维修维护的时间建议;通过现场开挖,对比实测数据与内检测数据,验证了适用性
评价的合理性。该研究可望提高长输管线内检测数据的利用程度,便于展开不同轮次内检测数据
的比对工作,促进后续内检测工作的顺利进行。
关键词:内检测;数据分析;适用性评价;数据比对
中图分类号:TE88;TG115.28 文献标志码:B 文章编号:1000-6656(2024)06-0089-06
Analysis of Internal Inspection Data for Long Distance Pipeline Based on
Magnetic Leakage Detection
LI Hongpeng
(Fujian Branch of Pipe China, Xiamen 361113, China)
Abstract: Based on the internal inspection data obtained from a domestic long-distance pipeline using magnetic flux
leakage technology, an analysis was conducted on pipeline defects by internal inspection data. The identification of mileage
distribution and characteristic features of metal loss defects and girth weld defects within the pipeline were obtained. A
preliminary analysis was carried out on the underlying causes of these defects. Combined with relevant standards and
evaluation methods, an applicability assessment was performed for pipe segments containing defects, followed by a
prediction of their residual service life. This resulted in recommendations for the timing of maintenance and repair activities
on the pipeline. Field excavations were also conducted to compare the data of actual measurements and internal inspection
and the rationality of the applicability evaluations. This work was expected to enhance the utilization rate of the internal
inspection data, facilitating comparative analyses across different inspection rounds. Ultimately, it aims to facilitate
smoother progression of subsequent internal inspection tasks.
Key words: internal inspection;date analysis;applicability assessment;date comparison
长输管道对于促进社会经济发展具有重要的保 措施具有重要作用,可为管道的维护决策提供技术支
障作用,近年来,国内各管道运营公司对于管道安全 撑,现已成为管道完整性管理体系中的重要一环 [1-4] 。
的重视程度日益提高,从管理和技术两个层面不断加 为确保管道内检测的准确性,降低漏检、误报等
大投入。对长输管线开展内检测工作,对于提高管道 对评价结果的影响,在条件允许的条件下,建议进行
的输送效率、掌握管道变形情况、跟踪评价管道中腐 至少两轮内检测工作,利于更好地确认管道缺陷的发
蚀的位置及发展态势、分析管道缺陷成因并提出控制 展态势 [5-9] ,同时可结合管线在设计、施工和运行时的
各项数据,对被检测管线的运行状态进行客观科学评
收稿日期:2023-12-04
价,进而给出具有针对性的合理维护整改方案。
作者简介:李鸿鹏(1988—),男,硕士,工程师,主要从事长输管
某管线自建成投产已近十年,其管径为1 016 mm,
道工艺运行方面的研究工作
管道材料为X70钢,设计压力为10 MPa。为确保管
通信作者:李鸿鹏,lhp2007@163. com
89
2024 年 第 46 卷 第 6 期
无损检测

