本文以大港油田天然气公司φ529港沧输气管线安全环保隐患治理工程为例,对该项目的前期工作、项目实施和实施效果进行评价,总结经验和教训。为以后天然气管道大修工程项目提供借鉴,不断提高项目管理水平,保证更好地完成以后的项目管理工作,促使项目预期目标很好地完成,并为以后项目后评价积累资料。 In this paper, Dagang Oilfield Natural Gas Company φ529 Hong Kong Cang pipeline safety and environmental hazards governance project as an example, the project’s preliminary work, project implementation and implementation of the results were evaluated, lessons learned and lessons learned. It will provide reference for future natural gas pipeline overhaul projects, continuously improve project management level, ensure better completion of future project management, facilitate the completion of expected project objectives and accumulate data for future post-project evaluation.