利用气液旋流提高抽油泵泵效的实验研究

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，提高整个油井系统的工作效率，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，并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，有效提高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。

The experimental study on improving the pumping efficiency using gas-liquid cyclone

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 pu...