首页|电潜螺杆泵入口处气液比动态变化特性分析

电潜螺杆泵入口处气液比动态变化特性分析

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
随着油田开发的不断深入,螺杆泵采油技术得到进一步发展与完善,近年来,在高含气和稠油等非常规油气藏中也得到广泛应用,但由于游离气和溶解气的存在,气体进入泵内会影响螺杆泵的工作性能和使用寿命.针对这种情况,综合考虑油气水三相流体对螺杆泵运行工况的影响,结合钻井液密度、生产气油比、含水率和气体状态方程,建立了螺杆泵入口处的气液比计算模型,并以大港油田J36-6 和J36-8 油井的生产数据进行模拟分析.结果表明,在动液面高度一定的情况下,增加下泵深度有利于降低泵入口处的气液比,高密度、高含水和低生产气油比是保证泵入口气液比较低的关键.
Analysis on Dynamic Characteristics of the Inlet Gas-liquid Ratio of Electric Submersible Progressing Cavity Pump
With the development of oilfield production,the progressing cavity pump oil production technolo-gy has been further improved and developed,which has been widely used in unconventional oil and gas res-ervoirs such as high gas content and thick oil in recent years.However,due to the existence of free gas and dissolved gas,the gas entering the pump will affect the working performance and service life of the progress-ing cavity pump.To address this problem,this paper comprehensively considers the influence of oil,gas,and water three-phase fluids on the operating conditions of the progressing cavity pump,and establishes a calculation model of the gas-liquid ratio at the inlet of the progressing cavity pump by combining the densi-ty of the well fluid,the production gas-oil ratio,the water content and the gas equation of state,which was simulated and analyzed with the production data of the J36-6 and J36-8 wells.The results indicate that increasing the pump setting depth is helpful to reduce the gas-liquid ratio at the pump inlet at a certain height of the dynamic liquid level,furthermore,high density,high water cut,and low production gas-oil ratio are the keys to ensuring a lower gas-liquid ratio at the pump inlet.

Electric submersible progressing cavity pumpProgressive cavity pump inletDynamics of gas-liquid ratioOil-gas-water three-phasePump setting depth

刘学森、刘新福、郝忠献、黄守志、刘春花、李明

展开 >

青岛理工大学机械与汽车工程学院,山东青岛 266520

中国石油勘探开发研究院,北京 100083

中国石油大学(华东)机电工程学院,山东青岛 266580

中国石化大连石油化工研究院,辽宁大连 116045

展开 >

电潜螺杆泵 螺杆泵入口 气液比动态变化 油气水三相 下泵深度

国家自然科学基金面上项目山东省"泰山学者"建设工程专项山东省高等学校青创人才引育计划山东省自然科学基金面上项目

52074161tsqn2022111772021-青创-30613019ZR2022ME173

2024

石油地质与工程
中国石化河南油田分公司

石油地质与工程

影响因子：0.453
ISSN：1673-8217
年,卷(期)：2024.38(3)
  • 6