[1]张晓存,薛继军.埋地输气管线腐蚀综合评价[J].焊管,2015,38(1):66-68.[doi:1001-3938(2015)01-0066-03]
 ZHANG Xiaocun,XUE Jijun.Comprehensive Assessment for the Corrosion of Buried Gas Pipeline[J].,2015,38(1):66-68.[doi:1001-3938(2015)01-0066-03]
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埋地输气管线腐蚀综合评价
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
38
期数:
2015年第1期
页码:
66-68
栏目:
经验交流
出版日期:
2015-01-28

文章信息/Info

Title:
Comprehensive Assessment for the Corrosion of Buried Gas Pipeline
文章编号:
1001-3938(2015)01-0066-03
作者:
张晓存薛继军
(西安摩尔石油工程实验室有限公司,西安 710065)
Author(s):
ZHANG XiaocunXUE Jijun
(Xi’an Maurer Petroleum Engineering Laboratory Co., Ltd., Xi’an 710065, China)
关键词:
输气管道PCM检测阴极保护内腐蚀评价
Keywords:
gas pipeline PCM detection cathodic protection system internal corrosion assessment
分类号:
TE988.2
DOI:
1001-3938(2015)01-0066-03
文献标志码:
B
摘要:
为了保证输气管道的安全平稳运行,通过对某沙漠地区输气管线的腐蚀情况进行综合评价,包括PCM检测,阴极保护有效性检测,管体内腐蚀缺陷检测、成像与剩余强度评价以及剩余寿命评价。结果表明,该埋地输气管线的外防腐层存在漏点80个,阴极保护全部达标,管体外表面腐蚀是由防腐层破损而引起的,管体壁厚减薄处最小值为5.45 mm,该管道腐蚀缺陷在接受范围内,管道平均腐蚀速率较低。
Abstract:
To ensure the gas pipeline running safely and smoothly, this paper focused on a comprehensive assessment for the corrosion of a gas pipeline in desert area by the methods of PCM detection, cathodic protection system detection, internal corrosion defect detection, imaging and residual strength valuation and remaining lifetime assessment. The results showed that there are 80 leak sources on the external anti-corrosion coating, the cathodic protection system is qualified, the external surface corrosion of the pipeline is caused by coating damages, the outer surface corrosion of pipe body is caused by coating damage, the minimum wall thickness of the pipeline is 5.45 mm, the corrosion defects on the pipeline are acceptable and the average corrosion rate is low.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-08-12
作者简介:张晓存(1984—),女,硕士,主要从事油气输送管道、储罐及压力容器的检测及安全评价工作。
更新日期/Last Update: