METHOD OF OPERATION OF DROWNED PUMP Russian patent published in 2005 - IPC

FIELD: pump production; drowned oil pumps.

SUBSTANCE: Drowned pump is used for subsequent sucking-in and pumping-in of intermediate fluid into cavity of influence onto strata fluid. Pump is connected with gravitational separator hydrophilic-hydrophobic mechanism for separating strata fluid to water and oil. Separated products (water and oil) are pumped sequentially on the top, or water is pumped into lower productive beds or into taking aside areas. Fractional feed mode is available, i.e., water, oil, and water.

EFFECT: reduced power inputs.

3 cl, 2 dwg