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[1]张海龙　陈建恒　赵晓乐　杨东海　何利民　翟兴磊　单从云.塔式立管气液两相流的压力波动特性试验研究[J].油气储运,2019,38(03):1-7.
　ZHANG Hailong,CHEN Jianheng,ZHAO Xiaole,et al.Pressure fluctuation characteristics of gas-liquid two-phase flow in hybrid tower riser[J].Oil & Gas Storage and Transportation,2019,38(03):1-7.
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塔式立管气液两相流的压力波动特性试验研究

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 38 期数: 2019年03期 页码: 1-7 栏目: 出版日期: 2019-03-25
Title:
Pressure fluctuation characteristics of gas-liquid two-phase flow in hybrid tower riser
作者:
张海龙　陈建恒　赵晓乐　杨东海　何利民　翟兴磊　单从云
Author(s):
ZHANG Hailong;  CHEN Jianheng;  ZHAO Xiaole;  YANG Donghai;  HE Limin;  DI Xinglei;  SHAN Congyun
关键词:
塔式立管; 气液两相流; 压力波动; PDF; CDF
Keywords:
hybrid tower riser;  gas-liquid two-phase flow;  pressure fluctuation;  PDF;  CDF
分类号:
TE832
文献标志码:
A
摘要:

为了对深水油气田塔式立管系统气液两相流压力波动特性进行研究，通过室内试验分析了不同流型下的压力变化特征、压力波动幅值等。室内试验得到了6种流型，每种流型对应特定的压力波动形式，且最大波动幅度出现在严重段塞流向稳定流转变过程中的过渡流型II上。通过对立管底部的最大、最小压力分析，得出压力波动幅值随折算气速的增加呈现先增大后减小，且流型的转变对气速的敏感性高于液速。通过概率密度函数（Probability Density Function，PDF）和累计分布函数（Cumulative Distribution Function，CDF）的统计学分析，得出立管底部的压力在各种流型下的分布形态：下倾管底部压力PDF曲线在严重段塞流下高压区单峰特征显著；过渡流型下左右两峰相当，呈两端高、中间低的形态；稳定流型下峰值数量增加、压力范围集中；CDF曲线在高压区的拐点与PDF曲线的峰值对应。跨接管底部压力PDF曲线峰值均处于低压区，且中间高、两端低。在严重段塞流下，曲线呈现双峰和三峰分布，稳定流表现为单峰对称分布。结合压力PDF和CDF曲线可辅助分析和判别流型，并直观获得立管压力概率分布特征，以此作为其疲劳损坏和安全评估的参考。

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更新日期/Last Update: 2019-04-04