This paper points out that due to the low production capacity, it is uneconomic to use the existing pump pipe string to produce oil from the low permeability reservoir.

• 通过研究表明,采用虹吸尾管结构管柱,可减少流体通过的压力损失,提高泵的吸入压力、入泵液速度及脉冲解堵等功能。