格拉管线风险评估方法研究

分析了油气管道风险评估技术在国内外的研究和应用情况,针对格拉管线的技术性能和铺设环境现状,认为处于冻土带和地震高烈度带的管线具有较大的风险,并提出了相应的评估方法。对于穿越冻土管道,提出了定性法和有限元法的两级评估体系;对于穿越地震区的管段,分别从一般场地管道、穿越河流管道、跨越河流管道、穿越断层管道等四部分介绍了评估方法。相应的技术和方法可以用来指导管线的风险评估,以保证其安全、可靠运行。

Research on Risk Assessment Methods of Ge-La Pipeline

The paper analyzes the world-wide research and application status of pipeline risk assessment technology, and puts forward that Ge-La pipeline crossing permafrost strip and earthquake strip has strong risk based on its operational and environmental performance, which need to be evaluated. For the permafrost strip pipeline, a two-phase assessment system of qualitative method and finite-element method is advanced. For the earthquake strip pipeline, assessment measures of four kinds of pipelines are introduced,which are general field pipeline, traversing river pipeline, spanning river pipeline and traversing faultage pipeline. The corresponding ways can be used to guide risk assessment of Ge-La pipeline to ensure operaing safely and credibly.