摘要
针对沙漠地区输油管道的特点,设计了专门的管道检测方案,通过对管道高程和埋深的精确测量,选取管道低点开挖,采用漏磁检测、超声导波检测、超声测厚和超声C扫描成像等相结合的检测方法,开展管体内腐蚀检测,并解决了检测施工过程中遇到的诸多问题,为同类工程提供了参考借鉴。对检测出的缺陷进行了安全评价,结果表明,管线在设计压力下能够安全运行,给出了检测周期,并建议对存在严重缺陷管段重点监测,尽快进行补强或更换。
This paper described the characteristics of oil pipeline in desert, designed a special testing program, selected excavation points based on the accurate measurement of pipeline height and buried depth, carried out the pipe body inner corrosion detection by a method of combining magnetic flux leakage inspection, ultrasonic guided wave inspection, ultrasonic thickness measurement and ultrasonic C-scan imaging, And, solved many problems encountered in construction process to provide a reference for similar projects. At last, defects evaluation result showed that the pipeline is safe in the design pressure. It gave the detection cycle, suggested the pipe sections with serious defects should be monitored, and reinforce or replace them as soon as possible.
出处
《焊管》
2012年第8期55-58,共4页
Welded Pipe and Tube
关键词
沙漠输油管道
内腐蚀
检测
评价
oil pipeline in desert
inner corrosion
detection
evaluation
