ELECTRIC EQUIPMENT FOR LIFTING OF RESERVOIR FLUID IN WELL PAD AND METHOD OF ITS CONTROL Russian patent published in 2015 - IPC F04D15/00 F04D13/10 

FIELD: oil-and-gas industry.

SUBSTANCE: electric equipment comprises the units (2) of submersible electric pumps per number of wells (1) connected through a cable (6), and the step-up transformer (3) with the respective land station (4) for direct starting controls connected to a power network. The electric equipment is also fitted with an operating controller (7), at least, one control station (8) with a frequency converter connected through an additional step-up transformer (10) to a power line and a unit (9) of operated contactors (11). Electric motors (13) of pumps are designed synchronous with permanent magnets in rotors. Stations (4) are fitted with the controllers (12) connected with the operating controller (7). In the unit (9) input pins of power contacts of contactors (11) are connected to the station (8) output, their output pins are connected respectively with the output of the respective station (4). Control circuits of contactors (11) of the unit (9) and the station (4) are connected with the controller (7) output.

EFFECT: improvement of energy efficiency and depreciation of electric equipment of an oil well pad with ensuring of the possibility of selection regulation.

5 cl, 1 dwg