天然气凝析液管道积液特性研究  

Study on liquid accumulation characteristics of natural gas condensate pipeline

作　　者：刘子翼 LIU Ziyi(China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国地质大学(北京),北京100083

出　　处：《能源化工》2023年第5期60-63,共4页Energy Chemical Industry

摘　　要：采用OLGA软件对某凝析液管道建立了瞬态流动模型,分析了不同因素对管道低洼处积液特性的影响规律。结果表明,大管径管道更容易积液,尤其是公称管径超过DN 200时管道内积液量较大。上倾角在5°至30°之间变化时,随着管道上升管上倾角增大,上升管内持液率降低,管道内的积液量减少。压力对管道内持液率基本无影响,但管道压力超过6 MPa后,也不利于低洼管道积液的清除。随着天然气输送流量的增加,管道内的积液量减少。OLGA software is used to establish a transient flow model for a condensate pipeline,and the influence of different factors on the characteristics of the liquid accumulation in the low-lying part of the pipeline is analyzed.The results show that large pipeline diameter is more likely to accumulate liquid,especially when the pipeline nominal diameter exceeds DN 200,the amount of liquid in the pipeline is larger.When the upturn angle varies between 5°and 30°,with the increase of the upturn angle,the liquid holdup in the upturn pipeline and the amount of liquid in the pipeline decreases.The pressure has little effect on the liquid holdup in the pipeline,but when the pipeline pressure exceeds 6 MPa,it is not conducive to the removal of liquid accumulation in the low-lying pipeline.With the increase of natural gas transmission flow,the amount of fluid in the pipeline decreases.

关 键 词：天然气 凝析液 积液 携液能力 起伏管道 

分 类 号：TE88[石油与天然气工程—油气储运工程]