抽油机采油井筒内气液分离器数值模拟研究  

Numerical Simulation of Gas-Liquid Separator in Pumping Wellbore

作　　者：陈福禄 李枫[1,2] 刘彩玉[1,2] 王旭[3] CHEN Fu-lu;LI Feng;LIU Cai-yu;WANG Xu(School of Mechanical Science and Engineering,Northeast Petroleum University;Heilongjiang Provincial Key Laboratory of Petroleum and Petrochemical Multiphase Media Treatment and Pollution Prevention,Northeast Petroleum University;School of Petroleum Engineering,Northeast Petroleum University)

机构地区：[1]东北石油大学机械科学与工程学院 [2]东北石油大学黑龙江省石油石化多相介质处理及污染防治重点实验室 [3]东北石油大学石油工程学院

出　　处：《化工机械》2023年第5期685-691,共7页Chemical Engineering & Machinery

基　　金：大庆市指导性科技计划项目(批准号:zd-2019-19)资助的课题。

摘　　要：提出一种将抽油机井气液分离器入口进液量转化为脉动入口速度的方法。采用计算流体动力学方法,基于欧拉模型(Eulerian Model),针对抽油泵的工作特性和不同的含气体积分数对分离器内流场分布和分离性能影响开展数值模拟研究。数值模拟结果表明:当井下压力为8 MPa,入口含气体积分数在79.6%~90.0%范围内适当增加混合液的含气量可以提高气液分离器的分离效率。In this paper,a method to convert the gas-liquid separator’s inlet liquid volume of a pumping unit into a pulsating inlet velocity was proposed.In addition,through making use of the computational fluid dynamics method and based on the Eulerian Model and aiming at the working characteristics of the pump and the influence of different gas integration numbers on the flow field distribution and separation performance of the separator,a simulation study was implemented.Simulation results show that,as for the downhole’s pressure of 8 MPa and the inlet gas fraction ranging from 79.6%to 90.0%,properly increasing gas content of the mixed liquid can improve separation efficiency of the gas-liquid separator.

关 键 词：分离器 气液分离 分离效率 数值模拟 

分 类 号：TQ028.4[化学工程]