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中文摘要：
为解决高气油比井生产过程中的气锁问题,通过对常规抽油泵泵筒结构进行改造,设计了液气混抽泵。利用FLUENT软件对这种泵的工作过程进行模拟分析。通过模拟数据,分析泵内混相流体的流动规律,给出了气相体积分数云图、混合流体的速度云图、气相速度矢量和迹线以及泵内压力、气液体积分数变化曲线,进而阐述了该种泵在防止气锁方面的原理和作用。最后通过现场应用数据对比分析,证明了液气混抽泵在提高泵效与降低气体影响方面的作用和效果,为这种泵的现场应用提供了理论依据。
英文摘要：
The barrel structure of conventional subsurface pump is usually modified in order to address the is-sue of gas lock in the production process ol high gas-oil ratio well, thus the liquid-gas mixed rod pump has been designed. The working process of the pump was simulated and analyzed using FLUENT software. Through the sim-ulation data , the flow law of the mixed-phase fluid in the pump has been analyzed. The gas phase volumetric coef-ficient cloud diagram, the velocity cloud diagram of the mixed fluid , the gas velocity vector and path line , the curve of the pressure and gas-liquid volume content in the pump have been at tained. The principle and the role of the designed pump in the anti-air lock have been introduced. The comparison analysis between the simulation and the field application data has verified the effects and performance of the new pump in improving the pump efficiency and reducing the impact of gas, providing a theoretical basis for field application of the designed pump.
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