天然气与石油2025，Vol.43Issue(6)：30-40,11.DOI:10.3969/j.issn.1006-5539.2025.06.005
基于CFD的海洋平台多路阀冷热多相流模拟分析
CFD-based simulation analysis of cold and hot multiphase flows through multiport selector valve on offshore oil platforms
于成龙 1刘月鹏 1曾树兵 1陈文峰 1贾荣玉1
作者信息
- 1. 海洋石油工程股份有限公司,天津 300452
- 折叠
摘要
Abstract
The effect of flow patterns,heat transfer characteristics,and other factors related to the mixing of cold and hot multiphase flows within multiport selector valve(MSV)on production gathering and transportation remain insufficiently studied.Taking the gathering MSV on a certain offshore oil and gas well platform as the study object,this study uses Computational Fluid Dynamics(CFD)methods and tools to conduct a numerical simulation of the mixed gathering and transportation process of cold and hot multiphase flows within the MSV.By analyzing flow field characteristics—including the distribution and variation trends of phase volume fraction,temperature,viscosity,and velocity—under different ratios of cold and hot stream conditions,the results indicate that inlet flow rate,gas-liquid ratio,and MSV structure directly affect the flow patterns and velocity direction distributions.An increase in inlet flow rate significantly raise the flow velocity at the gathering outlet and causes velocity direction dispersion.Therefore,optimizing the outlet angle of MSV is necessary to ensure system stability and reduce energy consumption.Heat transfer inside the MSV space is non-uniform during mixing of cold(low-temperature gas well fluids)and hot(high-temperature oil well fluids)streams,resulting in localized low-temperature regions.As the proportion of cold streams increases,risks of hydrate formation,corrosion,and freezing rise.Methods such as premixing the two streams or injecting chemicals into streams upstream of the MSV shall be taken into account to avoid hydrate formation and freezing.The research findings provide a theoretical reference for the optimization of the cold and hot multiphase flow production gathering and transportation process in wellhead platforms.关键词
多路阀/冷热多相流/集输/数值模拟/CFDKey words
MSV/Cold and hot multiphase flow/Gathering and transportation/Numerical simulation/CFD引用本文复制引用
于成龙,刘月鹏,曾树兵,陈文峰,贾荣玉..基于CFD的海洋平台多路阀冷热多相流模拟分析[J].天然气与石油,2025,43(6):30-40,11.
