Analysis of Corrosion Reasons for Gathering Pipelines in Shale Gas Fields
摘 要
随着页岩气的开发,页岩气田部分集输管线陆续出现腐蚀穿孔现象。通过对失效管道进行失效分析,并结合腐蚀模拟试验,研究了页岩气集输管线腐蚀穿孔的原因。结果表明:页岩气集输系统集输管线的腐蚀穿孔主要是由微生物腐蚀导致的,添加杀菌剂后可以明显抑制微生物腐蚀,CO2腐蚀不是管道腐蚀穿孔的主要原因。
Abstract
With the development of shale gas, some gathering pipelines in shale gas fields corroded and perforated successively. Through the failure analysis of the failed pipe in combination with corrosion simulation test, the reasons for the corrosion and perforation of the shale gas gathering pipelines were studied. The results show that the corrosion and perforation of gathering pipelines in shale gas fields was mainly caused by microbial corrosion. Adding antiseptic could inhibit microbial corrosion obviously, and CO2 corrosion was not the major factor for the corrosion of the pipelines.
中图分类号 TG174 DOI 10.11973/fsyfh-202010013
所属栏目 失效分析
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收稿日期 2018/12/5
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引用该论文: LIU Qiaoping,FENG Siqiao,LI Yingchao,CHEN Changfeng. Analysis of Corrosion Reasons for Gathering Pipelines in Shale Gas Fields[J]. Corrosion & Protection, 2020, 41(10): 69
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参考文献
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【7】刘宏伟,徐大可,吴亚楠,等. 微生物生物膜下的钢铁材料腐蚀研究进展[J]. 腐蚀科学与防护技术,2015,27(5):409-418.
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【9】石立红. 超临界CO2开采页岩气技术可行性与安全性研究[D]. 成都:西南石油大学,2015.
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【13】刘宏芳,董泽华,许立铭. Fe2+对碳钢的微生物腐蚀作用的影响[J]. 腐蚀与防护,1998,19(5):210-213.
【14】WEN J,ZHAO K L,GU T Y,et al. A green biocide enhancer for the treatment of sulfate-reducing bacteria (SRB) biofilms on carbon steel surfaces using glutaraldehyde[J]. International Biodeterioration & Biodegradation,2009,63(8):1102-1106.
【15】LEE W,CHARACKLIS W G. Corrosion of mild steel under anaerobic biofilm[J]. Corrosion,1993,49(3):186-199.
【16】DE ROMERO M,DUQUE Z,RODRÍGUEZ L,et al. A study of microbiologically induced corrosion by sulfate-reducing bacteria on carbon steel using hydrogen permeation[J]. Corrosion,2005,61(1):68-75.
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