基于FLUENT的变径防气抽油泵性能数值模拟及研究  

Fluent-Based Numerical Simulation and Study of Performance of Variable Diameter Anti-gas Pump

作　　者：叶卫东[1] 张岩[1] 候宇[2] 李大齐 魏雪彤 YE Weidong;ZHANG Yan;HOU Yu;LI Daqi;WEI Xuetong(College of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China;Daqing Oilfield Co.,Ltd.Oil Production Engineering Research Institute,Daqing 163453,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]大庆油田有限责任公司采油工程研究院,黑龙江大庆163453

出　　处：《机械制造与自动化》2020年第4期133-135,144,共4页Machine Building & Automation

摘　　要：对变径防气抽油泵原理进行了简单的介绍,利用FLUENT软件对气液两相流场进行仿真模拟,研究抽油泵上下冲程不同时刻泵筒内流场的流动状态,分析防气抽油泵泵筒的大直径区对整个流场的影响及其结构的优缺点。由仿真结果可知,上冲程时当防气抽油泵柱塞到达泵筒的大直径区后,油管中的液体会迅速流入泵筒内,泵筒内的压力会突然增大,同时破坏泵筒内气液两相流的段塞流流型;下冲程时含气率降低,冲程损失为零。In this paper,the principle of the variable diameter anti-gas pump is briefly introduced,and the gas-liquid two-phase flow field is simulated by FLUENT software.The flow behavior of the flow field in the pump cylinder at different times of the up and down stroke of the pump is studied.The influence of the large diameter zone of the anti-gas pumping pump on the whole flow field and the advantages and disadvantages of its structure are analyzed.According to the simulation results,when the anti-gas pump plunger reaches the large diameter zone of the pump cylinder,the liquid in the oil pipe quickly flows into the pump cylinder,and the pressure inside the pump cylinder suddenly increases,and slug flow pattern of gas-liquid two-phase flow in the pump cylinder is destroyed.The downstroke gas content is reduced and the stroke loss is zero.

关 键 词：变径防气抽油泵 气液两相流 性能 数值模拟 

分 类 号：TE933[石油与天然气工程—石油机械设备]