[1]王 琳,范玉然,何金昆.某输油管道腐蚀穿孔失效原因分析[J].焊管,2022,45(3):50-56.[doi:10.19291/j.cnki.1001-3938.2022.03.010]
 WANG Lin,FAN Yuran,HE Jinkun.Corrosion Perforation Failure Analysis of Oil Pipeline[J].,2022,45(3):50-56.[doi:10.19291/j.cnki.1001-3938.2022.03.010]
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某输油管道腐蚀穿孔失效原因分析()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
45
期数:
2022年第3期
页码:
50-56
栏目:
失效分析
出版日期:
2022-03-28

文章信息/Info

Title:
Corrosion Perforation Failure Analysis of Oil Pipeline
文章编号:
10.19291/j.cnki.1001-3938.2022.03.010
作者:
王 琳范玉然何金昆
中国石油天然气管道科学研究院有限公司, 河北 廊坊 065000
Author(s):
WANG Lin FAN Yuran HE Jinkun
China Petroleum and Natural Gas Pipeline Research Institute Co., Ltd., Langfang 065000, Hebei, China
关键词:
输油管道腐蚀穿孔失效分析腐蚀产物H2S腐蚀CO2腐蚀
Keywords:
oil pipeline corrosion perforation failure analysis corrosion products H2S corrosionCO2 corrosion
分类号:
TE988.2
DOI:
10.19291/j.cnki.1001-3938.2022.03.010
文献标志码:
B
摘要:
为了研究某输油管道腐蚀穿孔的失效原因,对腐蚀穿孔管段进行了理化性能检测以及腐蚀产物分析。结果表明,管道腐蚀穿孔失效主要是由于管道内壁垢层下方发生严重局部腐蚀而造成。由于穿孔处管段位于管线下坡的低点处,且油管内介质流速很低,在输送过程中管内油水在穿孔处管段底部会发生分层,导致管段底部的管壁与水接触而发生较为严重的腐蚀;并且介质中的砂石颗粒也易于在该处沉积,砂石颗粒与腐蚀产物膜相互掺杂形成了较厚的垢层,垢层表面存在较多孔洞,有孔洞的垢层下方更容易发生局部腐蚀,从而导致管体腐蚀穿孔。
Abstract:
In order to study the failure causes of oil pipeline corrosion perforation, the physical and chemical properties and corrosion products of the corrosion perforation pipe section were tested. The results show that the failure of pipeline corrosion perforation is mainly caused by serious local corrosion under the scale layer on the inner wall of the pipeline. Because the pipe section at the perforation is located at the low point of the slope pipeline and the medium flow rate in the oil pipe is very slow, the oil and water in the pipe will be stratified at the bottom of the pipe section at the perforation during transportation, resulting in serious corrosion due to the contact between the pipe wall at the bottom of the pipe section and water. Moreover, the sand and stone particles in the medium are also easy to deposit here. The sand and stone particles and the corrosion product film are doped with each other to form a thicker scale layer. There are many holes on the surface of the scale layer, and local corrosion is more likely to occur below the scale layer with holes, resulting in corrosion perforation of the pipe body.

参考文献/References:

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备注/Memo

备注/Memo:
收稿时间:2021-09-26基金项目: 山东联合能源管道输送有限公司“烟淄输油管道腐蚀研究及冷热原油交替输送研究”(项目编号GDJGC-YJY-2022-JS-019)。作者简介:王 琳(1992—),女,硕士,工程师,主要从事油气管道修复、失效分析研究。
更新日期/Last Update: 2022-04-02