摘要
电潜泵是油气资源开发利用的关键设备,提高其水力性能及运行稳定性至关重要。为揭示口环间隙对电潜泵轴向力及性能的影响机制,采用SST k-ω湍流模型对电潜泵在不同口环间隙下的三维流场进行数值模拟,分析电潜泵轴向力及其性能的变化规律,并对压力、速度、涡结构等关键流动参数进行对比分析。结果表明:随着间隙泄漏量的增加,流场稳定性降低,扬程和效率略有下降;口环间隙的变化对电潜泵的轴向力有显著影响,额定流量工况下前口环间隙减小50%时轴向力下降约32.33%;后口环间隙减小50%时轴向力下降约63.69%。
The electric submersible pumps are the key equipment for exploitation and utilization of oil and gas resources,and it is very important to improve its hydraulic performance and operation stability.Electric submersible pumps are critical equipment in oil and gas field development,and wear-ring clearance is a key parameter affecting their performance and axial force.To investigate the mechanisms underlying the influence of wear-ring clearance on the axial force and performance of electric submersible pumps,this paper utilizes the SST k-ωturbulence model to perform numerical simulations of the three-dimensional flow field within ESPs across various wear-ring clearances.The variations of the axial force and performance were analyzed, and the key flow parameters such as pressure, velocity and vortex structure were com-pared. The results indicate that as the clearance leakage increases, flow field stability decreases, leading to slight reductions in head and efficiency. Furthermore, variations in the wear-ring clearance exert a notable influence on the axial force of the electric submersible pump. Specifically, under rated flow conditions, a 50% reduction in the front wear-ring clearance leads to a decrease in axial force by approximately 32.33%, while a similar reduction in the rear wear-ring clearance results in a decline in axial force by approximately 63.69%.
作者
付军
孙晨曦
范文
杜丹阳
周岭
FU Jun;SUN Chenxi;FAN Wen;DU Danyang;ZHOU Ling(CNOOC Ener Tech Drilling&Production Co.,Ltd.,Tianjin 300452 China;National Research Center of Pumps,Jiangsu University,Zhenjiang 212013 China)
出处
《西华大学学报(自然科学版)》
2026年第1期80-89,共10页
Journal of Xihua University:Natural Science Edition
基金
国家自然科学基金面上项目(52579087)
江苏省杰出青年基金项目(BK20230011)。
关键词
电潜泵
口环间隙
数值模拟
轴向力
electric submersible pump
wear-ring clearance
numerical simulation
axial force
