利用气液旋流提高抽油泵泵效的实验研究  

The Experimental Study on Improving the Pumping Efficiency Using Gas-liquid Cyclone

作　　者：韩洪升[1] 王庆伟[1] 屈成亮[1] 赵建帼[1] 

机构地区：[1]东北石油大学,大庆163318

出　　处：《科学技术与工程》2010年第36期9069-9072,9085,共5页Science Technology and Engineering

摘　　要：为解决大庆外围部分区块油井井下气液分离问题和抽油泵的泵效,利用室内模拟抽油机井实验装置,模拟采油八厂芳48区块抽油机井系统的井底流动状态。以水和空气作为流动介质,用优选出的螺旋气锚与现场采油抽油泵进行组合,设计出泵外和泵下两种防气装置。在不同冲次、不同排量、气液比为20 m3/t^8000 m3/t条件下,对两种工艺设计的气液分离效果进行了比较。防气装置设计中将进液孔同时作为分离气的排气孔,在泵外防气装置衬管环空顶部产生"气帽"效应,抑制气体进入防气装置,提高了旋流分离的分气效率。实验结果表明安装泵外防气装置的泵效要明显优于安装泵下防气装置的泵效,为现场应用提供了可靠的依据。To solve the downhole gas/water separation problems of part out field of Daqing and the pump efficiency of oil-well pump,the experimental facility of indoor simulated beam-pumping unit is used to simulated the downhole flow regimes of the beam-pumping unit system of Fang 48 of Daqing No.8 Oil Plant.With the water and air as the medium and the optimized cyclone separator combined with the field oil well pump,two gas proofing,out of the pump and under the pump are designed;and in the condition of different pumping speed,different displacement and gas-liquid ratio between 20 m3/t and 3 000 m3/t,did the comparison of the oil-gas separation effect of the two process designs.In the design of the gas proofs,the liquid inlet was meanwhile designed as the discharge port of the separated gas,which can produced ＂gas cap＂ effect in the top of the liner tube annulus of the gas proofing out of the pump and restrained gas enter into the gas proofing,and effectively improved the gas-separating effect of the cyclone separator.Experiment results show that the pump efficiency with the gas proofing out of the pump is obviously better than the one with gas proofing under the pump,which provides dependable basis for the oil field.

关 键 词：抽油泵 防气装置 气液比 泵效 

分 类 号：TE355.5[石油与天然气工程—油气田开发工程]