井下混抽泵增压单元数值仿真  

Numerical Simulation on the Compress Units of the Downhole Multiphase Pump

作　　者：李临华[1] 孙宝全[1] 于庆国[2] 刘玉国[1] 迟鹏[1] 李德忠[1] 

机构地区：[1]胜利油田分公司采油工艺研究院,山东东营257000 [2]大港油田分公司滩海开发公司,天津300280

出　　处：《石油矿场机械》2008年第9期31-35,共5页Oil Field Equipment

基　　金：中国石化集团公司重大科技攻关项目"海上高气油比井井下多相混抽装置研究与应用"部分研究内容(P05045)

摘　　要：采用ANSYS CFX11.0商业软件,对研究开发的的混抽泵实体中的增压单元进行了数值仿真模拟,并采用非均相流动模型描述气、液2相的流动。计算网格采用由Turbogrid生成的结构性网格,在网格处理方面采用了多重网格技术和通用节点界面技术,模拟计算了不同含气率下增压单元流道内压力和气、液2相速度的分布规律以及流动动态,并将数值模拟结果和混抽泵室内试验结果进行了对比。分析了运行中产生涡的原因,为改进设计提出了指导性意见。By using the commercial software ANSYS CFX11. 0, numerical simulation was made on the compress units of the downhole multiphase pump. The flow of two phases is described with non-monophasic flow model. Computational grid is structured grid built-up from turbogrid. Multi-grid and general node point interface method are applied for the grid processing. The distri- bution patterns and flow performance of the pressure and gas-liguid velocity inside the compress units are simulated. A comparison is completed between the simulation result and experiment result of the multiphase pump. In addition, the reason for vortex formed was studied. It can be used as a direction for improving design.

关 键 词：多相流 增压单元 混抽 仿真研究 

分 类 号：TE933.302[石油与天然气工程—石油机械设备]