沙漠地区输油管道内腐蚀开挖检测与评价  

Inner Corrosion Detection and Evaluation of Oil Pipeline in Desert

作　　者：王珂 罗金恒 赵雄[2] 袁柱[2] 熊林[2] 丁科艳[3] 

机构地区：[1]中国石油集团石油管工程技术研究院,西安710065 [2]中国石油塔里木油田公司销售事业部,新疆库尔勒841000 [3]中国石化集团江苏石油勘探局钻井处,江苏江都225261

出　　处：《焊管》2012年第8期55-58,共4页Welded Pipe and Tube

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.

关 键 词：沙漠输油管道 内腐蚀 检测 评价 

分 类 号：TG174.1[金属学及工艺—金属表面处理]