焊管2016，Vol.39Issue(7)：65-68,4.DOI:10.19291/j.cnki.1001-3938.2016.07.015
在役输气管道分层缺陷无损检测及安全评价
Non-destructive Inspection and Safety Evaluation for Lamination Defect of Gas Transportation Pipeline on Service
王珂 1罗金恒 2杨锋平 1马卫锋 2张瑶1
作者信息
- 1. 中国石油集团石油管工程技术研究院，西安 710077
- 2. 石油管材及装备材料服役行为与结构安全国家重点实验室，西安 710077
- 折叠
摘要
Abstract
For the abnormal wall thickness metal loss of gas transportation pipelines on service, which found in pipeline inspection, it adopted ultrasonic angle probe and C-Scan technologies to detect and verify, gave the applicable evaluation method for pipeline defects, and carried out evaluation for the detected defects. The result indicated that the defect is internal lamination defect, which cannot meet level 1 assessment requirements for pipeline lamination defect in API 579—2007. It suggested changing pipeline or adopting composite materials to conduct reinforcement and repair, and should strengthen detection and evaluation for pipeline raw material, manufacturing process and service process, to ensure pipeline safe operation.关键词
焊管/天然气管道/分层缺陷/无损检测/安全评价Key words
welded pipe/natural gas pipeline/lamination defect/nondestructive testing/safety evaluation分类
能源科技引用本文复制引用
王珂,罗金恒,杨锋平,马卫锋,张瑶..在役输气管道分层缺陷无损检测及安全评价[J].焊管,2016,39(7):65-68,4.
