FIELD: pumps.
SUBSTANCE: invention relates to well pumping units, simultaneously operating several facilities. Pump unit for operation of well beds includes tubing string, cable, shank, packer, installed outside shank between beds, and pump to pump out bed products. Unit includes beds switching device, which in case of electric centrifugal pump using is connected to casing, surrounding electric motor together with cable and ending at input module, and in case of bottom-hole pump using is with pump inlet. Formations switching device is connected with one formation via check valve, and with another is via valve with shut-off element in form of rod with seals or seated valve, actuated by electric drive.
EFFECT: technical result consists in increasing of beds oil recovery factor and improvement of unit reliability.
4 cl, 4 dwg
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