长距离输气管道泄漏扩散研究进展  

Advances in the Study of Long-Distance Gas Pipeline Leakage and Diffusion

作　　者：刘锴 李又绿 余东亮 蒋毅 吴东容 徐涛龙 李永杰 蒋宏业 LIU Kai;LI Youlv;YU Dongliang;JIANG Yi;WU Dongrong;XU Taolong;LI Yongjie;JIANG Hongye(Pipe China Southwest Pipeline Co.,Ltd.;College of Petroleum&Gas Engineering,Southwest Petroleum University)

机构地区：[1]国家管网集团西南管道有限责任公司 [2]西南石油大学石油与天然气工程学院

出　　处：《油气与新能源》2023年第6期65-73,共9页Petroleum and new energy

基　　金：国家自然科学基金面上项目《X80掺氢天然气管道环焊缝区微结构-应力-氢协同效应与氢脆失效机理多尺度研究》(52374068)。

摘　　要：长距离输气管道具有高压、管径大和输送介质易燃易爆的特性,若发生泄漏容易导致重大灾害损失及人员伤亡。通过调研输气管道泄漏扩散的相关研究,从理论模型研究、实验研究、数值模拟等方面论述了输气管道泄漏扩散的国内外研究进展。重点探讨了地面管道、埋地管道泄漏扩散研究方法及成果,并对目前研究过程中存在的问题进行了论述,旨在对长距离输气管道泄漏扩散研究提供有益参考。对地面管道的已有研究多集中于针对管道自身参数对泄漏的影响,对于泄漏影响因素的考虑尚不够全面;在埋地管道泄漏规律的研究中,对土壤的性质大多只做了简化处理,研究集中在单一土壤或大气中的泄漏扩散等方面。High pressure,large pipe diameters,and an explosive and combustible transmission medium are the features of long-distance gas pipelines.Leakage has the potential to cause catastrophic losses and casualties.This paper explores relevant research on gas pipeline leakage and diffusion and talks about the advancements in domestic and international research on these topics from the perspectives of theoretical model research,experimental research,and numerical simulation.With the goal of offering a helpful reference for the study on leakage and diffusion of long-distance gas pipelines,the paper concentrates on the research methodologies and findings of leakage and diffusion of surface pipelines and buried pipelines,as well as the issues that are currently facing the research process.Many ground pipeline studies currently focus on the influence of pipeline parameters on leakage,with insufficient attention paid to other factors that may also affect leakage.The majority of research on underground pipeline leakage patterns simply simplifies soil characteristics and concentrates on leakage and diffusion inside a particular soil or in the atmosphere.

关 键 词：长距离输气管道 泄漏扩散 理论计算 数值模拟 研究进展 

分 类 号：TE83[石油与天然气工程—油气储运工程]