输油管道泄漏的三类不停输修复技术建模与对比分析  

Modeling and Comparative Analysis of Three Types of In-Service Repair Technologies for Oil Pipeline Leaks

作　　者：王莉莉[1] 高兆基 马松浩 付世博 胡芳问 WANG Lili;GAO Zhaoji;MA Songhao;FU Shibo;HU Fangwen(School of Civil Engineering and Architecture,Northeast Petroleum University,Daqing 163318,Heilongjiang China;Northeast Sales Branch of China National Petroleum Corporation limited,Shenyang 110013,China)

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318 [2]中国石油天然气股份有限公司东北销售分公司,沈阳110013

出　　处：《河南科学》2024年第11期1570-1577,共8页Henan Science

基　　金：黑龙江省重点研发计划“揭榜挂帅”科技攻关项目(2023ZXJ06A04)。

摘　　要：输油管道在输送介质和外部环境因素综合影响下易产生腐蚀泄漏并降低管道的安全输送性能.为避免环境污染和资源浪费并保证输油管道的持续安全运行,需要及时采取不停输技术对管道泄漏缺陷进行修复.使用有限元模拟软件COMSOL Multiphysics建立了泄漏原油管道模型并通过与文献数据进行对比验证了模型的可靠性;分别应用B型套筒、钢制环氧套筒和碳纤维复合材料三类修复技术对管体泄漏缺陷进行修复建模,结合规范要求和模拟分析确定了修复层最佳尺寸,对比分析了三类修复技术的成本和效果.研究表明,三类修复技术均能将管道应力降低至安全区间并缩小应力集中范围,其中钢制环氧套筒修复性价比最高.Oil pipelines are prone to corrosion and leaks due to the combined effects of the transported medium and external environmental factors,which can lead to environmental pollution and resource waste and reduce the safe transportation performance of the pipelines.In order to avoid environmental pollution and resource waste and ensure the continued safe operation of the pipelines,it is necessary to promptly adopt in-service repair technology to repair pipeline leaks.A model of a leaking oil pipeline was established using the finite element simulation software COMSOL Multiphysics and validated by comparing it with literature data to verify the reliability of the model.The models of pipeline leaks were repaired using three types of repair technologies,including B-type sleeves,steel epoxy sleeves,and carbon fiber composite materials,combined with specifications’requirements and simulation analysis to determine the optimal size of the repair layer.The cost and effectiveness of the three repair technologies were compared and analyzed.The study shows that all three repair technologies can reduce the pipeline stress to a safe range and reduce the range of stress concentration.Among them,the steel epoxy sleeve repair technology has the highest cost-effectiveness.

关 键 词：输油管道 不停输修复技术 修复层最佳尺寸 有限元建模 COMSOL 

分 类 号：TE973[石油与天然气工程—石油机械设备]