[1]李 明,李秉军,何永志,等.某埋地碳钢管道腐蚀失效分析[J].焊管,2021,44(8):30-35.[doi:10.19291/j.cnki.1001-3938.2021.08.006]
 LI Ming,LI Bingjun,HE Yongzhi,et al.Corrosion Failure Analysis of a Buried Carbon Steel Pipeline[J].,2021,44(8):30-35.[doi:10.19291/j.cnki.1001-3938.2021.08.006]
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某埋地碳钢管道腐蚀失效分析()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
第44卷
期数:
2021年第8期
页码:
30-35
栏目:
失效分析
出版日期:
2021-08-28

文章信息/Info

Title:
Corrosion Failure Analysis of a Buried Carbon Steel Pipeline
文章编号:
10.19291/j.cnki.1001-3938.2021.08.006
作者:
李 明李秉军何永志王 雷梁昌晶
1. 中国石油华北油田公司 第五采油厂,河北 辛集 052360;
2. 中国石油华北油田公司 华港燃气集团有限公司,河北 任丘 062552;
3. 河北华北石油港华勘察规划设计有限公司,河北 任丘 062552
Author(s):
LI Ming LI Bingjun HE Yongzhi WANG Lei LIANG Changjing
1. The Fifth Exploit Factory of PetroChina Huabei Oilfield Company, Xinji 052360, Hebei, China;
2. Huagang Gas Group Co., Ltd., Petrochina Huabei Oilfield Company, Renqiu 062552, Hebei, China;
3. Hebei Huabei Petroleum GangHua Survey Planning & Design Co., Ltd., Renqiu 062552, Hebei, China
关键词:
埋地管道吸氧腐蚀硫酸盐还原菌失效分析
Keywords:
buried pipeline oxygen absorption corrosion sulphate-reducing bacteria failure analysis
分类号:
TG115
DOI:
10.19291/j.cnki.1001-3938.2021.08.006
文献标志码:
A
摘要:
针对某气田L360管道外壁发生的局部腐蚀现象,通过对腐蚀管段理化性能分析、土壤成分分析和硫酸盐还原菌(SRB)腐蚀试验等,系统地研究了该管道失效的原因。结果显示,该管材的化学成分、力学特性和金相组织均符合标准要求。分析表明,管体周围土壤含水率较高同时含有大量的SRB是导致局部腐蚀的主要原因,且随着时间延长产物膜不具备保护性,其与基材形成的腐蚀原电池加快了腐蚀进程。
Abstract:
In view of the local corrosion phenomenon on the outer wall of a L360 pipeline, the failure reason of the pipeline was studied through the physical and chemical analysis of the corroded pipe section, soil composition analysis and sulphate-reducing bacteria corrosion test. The results show that the chemical composition, mechanical properties and metallographic structure of the pipe meet the standard requirements. The high moisture content and large amount of sulphate-reducing bacteria in the soil around the pipe are the main causes of local corrosion. The product film does not protect with the time on, and the corrosion galvanic cell formed between the product and base metal speeds up the corrosion process.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-05-18
基金项目: 中国石油华北油田公司科研项目“油田集输小直径管道内腐蚀评价技术研究”(项目编号2020-HB-C16);中国石油勘探与生产分公司科研项目“低成本油气集输技术和低产高含水油田常温集输适应性研究”(项目编号kt2018-15-01-03)。
作者简介:李 明(1974—),河北省辛集市人,2011年毕业于河北工业大学石油工程专业,大学本科,高级技师,现主要从事油气开采相关工作。
更新日期/Last Update: 2021-08-30