FIELD: oil industry.
SUBSTANCE: present technical solution relates to the field of oil production by electric driven centrifugal pumps. The electric driven centrifugal pump includes two groups of pumping sections. The lower group contains working stages of increased productivity due to the width of the passage channels, gradually tapering from bottom to top. The impeller blades of the lower section of the pump are made of two parts (1, 2). The part (1) adjacent to the outer circumference of the wheel is displaced to the middle of the distance between the inner parts (2) of the blades.
EFFECT: invention is aimed at increasing efficiency of the pump by eliminating the negative effect of gas.
1 cl, 1 dwg
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