INLET MODULE GAS SEPARATOR OF DOWNHOLE ELECTRIC CENTRIFUGAL PUMP Russian patent published in 2019 - IPC F04D13/10 F04D31/00 F04D29/70 E21B43/12 

FIELD: machine building.

SUBSTANCE: invention relates to petroleum engineering, namely to devices for gas separators of downhole electric centrifugal pumps intended for lifting a gas-liquid mixture. Inlet module of the gas separator consists of a body in the form of a cylinder with holes for receiving a gas-liquid mixture, upper and lower subcontractors connecting the body to the gas separator and hydroprotection of the downhole motor, the overlapping element in the form of a half-cylinder, the counterweight in the form of an eccentric bushing with a displaced center of gravity, elements for the perception of axial load and bearings, allowing the overlapping element to rotate freely. Overlapping element is made by applying a polymeric material on the reinforcing frame to increase its strength. Counterweight is located at the bottom of the module, performs the function of securing the overlap element, the trunnion and provides the required angular orientation of the overlapping element within the casing.

EFFECT: invention is aimed at the creation of an inlet module for the gas separator of a downhole electric centrifugal pump, which ensures an increase in reliable operation of the latter when operating wells with zenith angles in the pump suspension zone of 65–89 degrees with a high content of free gas.

1 cl, 2 dwg