吸入管内未充满液体时，泵通过自动抽气作用排液，适应于从地下容器中抽提液体。
Inhalation tube not filled with liquid, the pump through the role of automatic exhaust fluid, adapted to extract from the ground container liquid.
认为小泵深抽技术将是川中未来最重要的采油工艺之一，在油田稳产中将起重要作用。
This paper demonstrates that small pump technology will be one of the most important production technology in central Sichuan oil field, and contributes much to the stable production of the oil field.
通过动力电缆给井下直线电机供电后产生交变磁场，永磁体动子在交变磁场作用下带动泵柱塞上下往复运动，从而达到举升抽油的目的。
Under the action of variation magnetic field, the permanent magnet moving-coil drives the plunger pump to move up and down and lift oil up to ground.
应用推荐