基于旋流携砂机理的高效自清洁抽油泵设计  

Design of High Efficient Self-Cleaning Pump Based on the Swirl Sand-Carrying Mechanism

作　　者：屈文涛[1] 鱼强 孙艳萍[1] QU Wen-tao;YU Qiang;SUN Yan-ping(College of Mechanical Engineering, Xi′an Shiyou University, Xi′an Shaanxi 710065, China)

机构地区：[1]西安石油大学机械工程学院,陕西西安710065

出　　处：《机械研究与应用》2019年第1期111-113,共3页Mechanical Research & Application

摘　　要：针对抽油泵固定阀处杂物沉积的问题,设计一种基于旋流携砂机理的高效自清洁抽油泵。在加长短节内加装螺旋总成,以增加油液举升过程中的切向速度,来解决杂质颗粒在固定阀处沉积的问题。通过胜利油田某采油厂现场五口井试验证明,该旋流自清洁技术可实现自清洁功能以达到排砂效果。利用流体力学方法对螺旋总成内固液两相流进行分析,进一步建立两相流运动模型,并对自清洁抽油泵排出杂物效果进行仿真分析,进而优化螺旋总成的导程参数,为后期降低旋流自清洁技术应用成本积累经验。Aiming at the problem of impurity deposition at the fixed valve of the pump, a high efficient self-cleaning pump based on the swirl sand-carrying mechanism is designed in this paper. In order to solve the deposition problem of the impurity particles at the fixed valve, the spiral assembly is added in the extension coupling to increase the tangential velocity during the oil lifting process. The field test of five wells in a certain oil production plant of Shengli Oilfield shows that the self-cleaning technology of the swirling has the self-cleaning function which could achieve the effect of sand discharging. The hydrodynamic method is used to analyze the solid-liquid two-phase flow in the spiral assembly, and the two-phase flow motion model is further established. The effect of eliminating debris on the self-cleaning pump is simulated and analyzed, and then the lead parameters of the spiral assembly are optimized, so as to accumulate experience for reducing the application cost of the self-cleaning technology in the later period.

关 键 词：抽油泵 自清洁 固定阀 数值模拟 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]