中国西部某油田管道失效原因及防护措施

Failure Cause of Pipeline in an Oilfield in Western China and Protective Measures

对西部某油田管道失效数据进行统计分析,结合细菌检测、水质与土壤分析等手段对管道失效原因进行了分析。结果表明:内外腐蚀穿孔是造成该油田管道失效的主要原因;管道运行年限长、制造工艺缺陷、内外环境介质腐蚀性强、细菌加速腐蚀、缺乏有效腐蚀防护措施、施工过程不规范是该油田管道内外腐蚀的重要原因。通过失效原因分析、选用耐蚀性管材、采用适用性强的防腐蚀层和腐蚀抑制剂、建立现场腐蚀监测系统,可对油田管道腐蚀进行综合性治理防控。

Based on the statistical analysis of pipeline failure data in an oil field in western China,the causes of pipeline failure were analyzed by bacteria detection,water quality and soil analysis.The results show that the internal and external corrosion perforation was the main cause of the failure of pipelines in the oil field.Long service life,manufacturing process defects,strong corrosivity of internal and external environmental media,accelerated bacterial corrosion,lack of effective corrosion protection measures,and non-standard construction process were the main reasons for the internal and external corrosion of the oilfield pipeline.Pipeline corrosion in the oilfield can be comprehensively controlled and prevented by failure cause analysis,selection of corrosion-resistant pipes,adoption of highly applicable anti-corrosion coatings and corrosion inhibitors,and establishment of on-site corrosion monitoring system.