[1]赵向东.某油田天然气输送管线泄漏原因分析[J].焊管,2020,43(7):25-29.[doi:10.19291/j.cnki.1001-3938.2020.07.005]
 ZHAO Xiangdong.Cause Analysis of Natural Gas Pipeline Leakage in the Oilfield[J].,2020,43(7):25-29.[doi:10.19291/j.cnki.1001-3938.2020.07.005]
点击复制

某油田天然气输送管线泄漏原因分析()
分享到:

《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
43
期数:
2020年第7期
页码:
25-29
栏目:
应用与开发
出版日期:
2020-07-28

文章信息/Info

Title:
Cause Analysis of Natural Gas Pipeline Leakage in the Oilfield
文章编号:
10.19291/j.cnki.1001-3938.2020.07.005
作者:
赵向东
四川石油天然气建设工程有限责任公司,成都 610051
Author(s):
ZHAO Xiangdong
Sichuan Oil and Gas Construction Engineering Co., Ltd., Chengdu 610051, China
关键词:
油气输送管道腐蚀泄漏CO2腐蚀H2S腐蚀
Keywords:
oil and gas transmission pipeline corrosion leakage CO2 corrosion H2S corrosion
分类号:
TE988.2
DOI:
10.19291/j.cnki.1001-3938.2020.07.005
文献标志码:
B
摘要:
某油田天然气输送管线在半年内连续4次发生泄漏,给管线的正常运行带来极大的安全隐患。为了找到管道发生泄漏的原因,截取了部分泄漏管段,对其进行了宏观形貌、理化性能、扫描电镜、能谱分析及X射线衍射等分析研究。结果表明:该输送管道的材质满足GB/T 9711.2—1999对L245MB焊接钢管的要求;管道内壁的腐蚀机理为CO2和H2S腐蚀;发生泄漏的主要原因是管道内外的温度差导致管内水蒸气凝结于管底形成液态水,与管道内腐蚀性气体CO2和H2S共同作用,导致管壁腐蚀减薄直至发生刺漏。
Abstract:
The natural gas transmission pipeline in an oil field leaks four times in half a year, which brings great safety risks to the normal operation of the pipeline. In order to find out the causes of the leakage, some leaking pipe sections were cut off, and their macromorphology, physical and chemical properties, scanning electron microscopy, energy spectrum analysis and X-ray diffraction were studied. The results show that the material of the pipeline meets the requirements of GB/T 9711.2—1999 for L245MB welded steel pipe. The corrosion mechanism of pipeline inner wall is CO2 and H2S corrosion. The main reason for the leakage is that the temperature difference inside and outside the pipe causes the water vapor in the pipe to condense at the bottom of the pipe to form liquid water, which works together with the corrosive gases CO2 and H2S in the pipe, leading to the corrosion thinning of the pipe wall until the leakage occurs.

参考文献/References:

[1] 李秋扬,赵明华,任学军,等. 中国油气管道建设现状及发展趋势[J]. 油气田地面工程,2019,38(S1):14-17.
[2] 黄维和,郑洪龙,李明菲. 中国油气储运行业发展历程及展望[J]. 油气储运,2019,38(1):1-11.
[3] 陈玉祥,唐佳. 我国油气地面输送管线用钢发展概况[J]. 化工设计通讯,2017,43(7):38.
[4] 冯耀荣,马秋荣,张冠军. 石油管材及装备材料服役行为与结构安全研究进展及展望[J]. 石油管材与仪器,2016,2(1):1-5.
[5] 肖雯雯,杜志杰,葛鹏丽,等. 16Mn钢弯管的开裂原因[J]. 腐蚀与防护,2019,40(7):543-548.
[6] 闫亚丽. 含CO2油井腐蚀套破机理及防治措施研究[D]. 西安:西安石油大学,2019.
[7] 刘猛,李斌,陈新华,等. X65管线钢在油水混合物中的水线腐蚀发展趋势[J]. 广西科学院学报,2018,34(4):16-22.
[8] 董志强,夏勇,张建勋. 某在役天然气湿气输送管道腐蚀穿孔失效原因分析[J]. 石油管材与仪器,2019,5(6):75-78.
[9] 张国安,路民旭,吴荫顺. CO2腐蚀产物膜的微观形貌和结构特征[J]. 材料研究学报,2005,19(5):537-548.
[10] 徐学旭,刘智勇,李建宽,等. 20钢和16Mn钢天然气管道失效分析[J]. 腐蚀科学与防护技术,2018,30(2):195-201.

相似文献/References:

[1]张振永,郭 彬.腐蚀管道剩余强度的确定及改造措施[J].焊管,2007,30(4):75.[doi:1001-3938(2007)04-0075-04]
 ZHANG Zhen-yong,GUO Bin.Determination of Residual Strength for Corrosion Pipeline and Rebuild Measures[J].,2007,30(7):75.[doi:1001-3938(2007)04-0075-04]
[2]罗华权,巨西民,吕 郑,等.油气输送管道对接环焊缝检测现状与研究进展[J].焊管,2008,31(1):40.[doi:1001-3938(2008)01-0040-05]
 LUO Hua-quan,JU Xi-ming,LU Zheng,et al.Current Inspection Situation & Research Progress of Girth Welding Seam of Oil & Gas Transmission Pipeline[J].,2008,31(7):40.[doi:1001-3938(2008)01-0040-05]
[3]董玉华,余大涛,李鹤林.用于地震及地质灾害条件下的钢管性能研究进展[J].焊管,2008,31(4):14.[doi:1001-3938(2008)04-0014-03]
 DONG Yu-hua,YU Da-tao,LI He-lin.Research Progress of Steel Pipe Performance Under Earthquake and Geologic Disaster[J].,2008,31(7):14.[doi:1001-3938(2008)04-0014-03]
[4]方 炯,孙华峰,孙 丽,等.管道内外防腐材料探讨[J].焊管,2009,32(1):33.[doi:1001-3938(2009)01-0033-04]
 FANG Jiong,SUN Hua-feng,SUN Li,et al.Discussion on Inside and Outside Anticorrosion Materials of Pipelines[J].,2009,32(7):33.[doi:1001-3938(2009)01-0033-04]
[5]孙 丽,徐庆磊,方 炯,等.CO2腐蚀与防护研究[J].焊管,2009,32(3):23.[doi:1001-3938(2009)03-0023-04]
 SUN Li,XU Qing-lei,FANG Jiong,et al.Research of the CO2 Corrosion and Its Prevention[J].,2009,32(7):23.[doi:1001-3938(2009)03-0023-04]
[6]林冬,许可方,黄润秋,等.油气输送管道沿线滑坡灾害的防治[J].焊管,2010,33(9):57.[doi:1001-3938(2010)09-0057-04]
 LIN Dong,XU Ke-fang,HUANG Run-qiu,et al.Pipeline Landslides Hazard Prevention and Control[J].,2010,33(7):57.[doi:1001-3938(2010)09-0057-04]
[7]郭春玲 编译.伏尔加钢管厂天然气管道用φ1 420 mm焊管生产概况[J].焊管,2011,34(5):65.
[8]肖国章,高 霞,管磊磊,等.某油井套管腐蚀原因分析[J].焊管,2011,34(8):43.
[9]林立恒 编译.俄罗斯焊管厂为生产大直径油气钢管所进行的改造[J].焊管,2011,34(8):69.
[10]李霄,石凯,刘彦明,等.连续管焊接工艺及接头性能研究[J].焊管,2012,35(5):15.[doi:1001-3938(2012)05-0015-04]
 LI Xiao,SHI Kai,LIU Yan-ming,et al.Research on Coiled Tubing Butt Welding Process and Properties of Welded Joint[J].,2012,35(7):15.[doi:1001-3938(2012)05-0015-04]

备注/Memo

备注/Memo:

收稿日期:2020-04-21

作者简介:赵向东(1968—),男,四川成都人,工程师,主要从事压力容器及油气田工程建设工作。

更新日期/Last Update: 2020-08-24