焊管2026，Vol.49Issue(8)：93-100,8.DOI:10.19291/j.cnki.1001-3938.2026.08.011
SRB/CO2共存环境下页岩气地面管线腐蚀行为研究与工程实践
Research and Engineering Practice on Corrosion Behavior of Shale Gas Surface Pipelines in SRB/CO2 Coexistence Environment
刘学虎 1齐亚猛 2肖茂 1高展 2张忠铧 2王诗语3
作者信息
- 1. 中国石油化工股份有限公司西南分公司,成都 610095
- 2. 宝山钢铁股份有限公司,上海 201900
- 3. 西安三维应力工程技术有限公司,西安 710075
- 折叠
摘要
Abstract
To investigate the corrosion behavior and corresponding control measures of shale gas field gathering pipelines under the coexisting environment of sulfate-reducing bacteria(SRB)and CO₂,comparative corrosion tests were conducted on ordinary carbon steel pipes and microbiologically resistant pipes through simulated experiments.The corrosion behavior was evaluated using weight loss method,scanning electron microscopy(SEM),and energy-dispersive spectroscopy(EDS)under both single SRB and SRB/CO ₂ coexisting conditions.The results indicate that the microbiologically resistant pipe exhibits superior corrosion resistance compared to ordinary carbon steel pipes in both single SRB and SRB/CO ₂ environments,and elevated temperatures significantly accelerate the corrosion process.Under field conditions,the corrosion rates and pitting depths of the microbiologically resistant pipe and ordinary carbon steel pipe are 0.2 mm/a and 4.5 μm,versus 1.2 mm/a and 24.7 μm,respectively.These findings further confirm that the microbiologically resistant pipe possesses excellent corrosion resistance and engineering applicability in actual shale gas field service conditions,and can serve as an effective technical solution for addressing corrosion issues in shale gas gathering systems.关键词
页岩气/耐微生物腐蚀管材/地面管线/SRB/CO2/腐蚀行为Key words
shale gas/microbial corrosion-resistant pipe/surface pipeline/SRB/CO2/corrosion behavior分类
矿业与冶金引用本文复制引用
刘学虎,齐亚猛,肖茂,高展,张忠铧,王诗语..SRB/CO2共存环境下页岩气地面管线腐蚀行为研究与工程实践[J].焊管,2026,49(8):93-100,8.
