加长管应用全生命周期费用探讨  

Discussion on Whole Life Cycle Cost of Extension Pipe Application

作　　者：侯杰廷 朱小丹 陈彬[2] 周文静[2] HOU Jieting;ZHU Xiaodan;CHEN Bin;ZHOU Wenjing(Construction Project Management Branch,National Petroleum and Natural Gas Pipeline Network Group Co.,Ltd.,Langfang 065001,Hebei,China;China Petroleum Pipeline Engineering Co.,Ltd.,Langfang 065000,Hebei,China)

机构地区：[1]国家石油天然气管网集团有限公司建设项目管理分公司,河北廊坊065001 [2]中国石油天然气管道工程有限公司,河北廊坊065000

出　　处：《焊管》2024年第3期58-63,共6页Welded Pipe and Tube

基　　金：国家石油天然气管网集团重点研发计划项目“油气管道安全高效建设关键技术研究”(项目编号SJSG202209)。

摘　　要：为了降低长输管道环焊缝失效概率、确保管道全生命周期安全运营以及加快焊接施工进度,提出管道项目建设应采用18 m加长管。通过对建设期费用、运营期费用和潜在损失费用三个方面进行分析,并对18 m加长管与12 m钢管的全生命周期费用进行全面对比。结果表明,18 m加长管在建设期费用、运营期费用成本可以有效控制,总体费用与12 m钢管基本一致;18 m加长管道潜在损失费总费用较12 m钢管降低126.56万元;18 m加长管全生命周期费用较12 m钢管仅增加费用250.44万,整体投资增加0.35%,表明18 m加长管的大规模应用投资成本可以有效控制。In order to reduce the probability of failure of girth welds in long distance pipelines,ensure safe operation throughout the entire life cycle of the pipeline and accelerate welding construction progress,it is proposed to use an 18 m extended pipe for pipeline project construction.By analyzing the construction period cost,operation period cost,and potential loss cost,a comprehensive comparison is made between the full life cycle cost of 18 m extended pipe and 12 m steel pipe.The results show that the construction and operation costs of an 18 m extended pipe can be effectively controlled,and the overall cost is basically the same as that of a 12 m steel pipe.The total cost of potential loss for an 18 m extended pipeline is reduced by 1.2656 million yuan compared to a 12 m steel pipe.The full life cycle cost of 18 m extended pipe only increases by 2.5044 million compared to 12 m steel pipe,and the overall investment increases by 0.35%,indicating that the investment cost of large-scale application of 18 m extended pipe can be effectively controlled.

关 键 词：加长管 全生命周期费用 失效分析 

分 类 号：TE89[石油与天然气工程—油气储运工程]