摘要
长距离–立管是一种将深海井口生产的油气资源输送到海上处理设施的关键管道系统。本文在水平管长度1657 m,立管高度29.1 m的贴近工业参数水平的长距离-S型立管系统上开展了严重段塞特性的实验研究。结合立管压差的波动范围及频率分布特征,将观察到的气液两相流型划分为严重段塞流(SS)、过渡流型(TRS)及稳定流型(STB)三大类。提出了新的段塞周期预测关联式,偏差为±15%。长管线–立管系统的液塞速度最大可达入口混合速度的23倍。统计可视水平段内的段塞流动数据,发现了气速诱导液塞的分布规律。
The long pipeline-riser system is a key system for transporting oil and gas resources from deepwater wells to offshore processing facilities.In this paper,the experimental study of severe slugging characteristics is carried out on a long pipeline S-shaped riser system with a horizontal pipe length of 1657 m and a riser height of 29.1 m,which is close to the industrial scale.Combined with the fluctuation and frequency characteristics of the riser differential pressure,the observed gas-liquid two-phase fow patterns are divided into three categories:severe slugging(SS),transition flow(TRS),and stable fow(STB).A new slugging period prediction correlation is proposed with a deviation of±15%.The maximum liquid slug velocity in the long pipeline can reach 23 times of the inlet mixing velocity.The slug flow data in the visible horizontal section are statistically analyzed,and the linear distribution law of the gas-induced slug and the void fraction is found.
作者
于海洋
徐强
曹业奇
黄博
郭烈锦
YU Haiyang;XU Qiang;CAO Yeqi;HUANG Bo;GUO Liejin(State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2024年第12期3723-3729,共7页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.51888103,No.52076175)。
关键词
长距离管线
严重段塞流
流型图
long pipeline
severe slugging
flow pattern map
