FIELD: engines and pumps.
SUBSTANCE: invention relates to pump production and can be used in designing the submerged oil pumps allowing a separate oil feed upward and a water feed downward into the withdrawal area, for example, for forcing oil to the adjacent well. The brine water is separated by gravity-hydrophilic-hydrophobic effects at the pump-compressor pipe section. The oil comes into the two-plunger system top plunger chamber and is forced there from and upwards. The water comes into the bottom plunger chamber and is forced under the well packer in the area for forcing the brine water to the nest pump.
EFFECT: higher pump efficiency.
1 dwg, 2 cl
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