DOWNHOLE CONTROLLED ELECTROMECHANICAL VALVE Russian patent published in 2019 - IPC E21B34/16 E21B43/12 E21B43/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to equipment of oil-field equipment and can be used with installations of electric centrifugal pumps (IECP) for simultaneous separate operation of gas, gas condensate and oil wells. Device includes a control unit, a micro electric motor, a reduction gear, a screw-nut with a nut, ball bearings, a screw, a pressure sensor, a temperature sensor, a rod having an axial and radial channels, a controlled valve with a seat. Control unit equipped with pressure and temperature sensors is tightly connected to power supply cable and arranged outside the inner housing. In the inner housing there is a pressure compensator having a piston and a cavity filled with oil, a leveling cavity is placed above the pressure compensator. Annular space is formed between external and internal casings. In the external housing having radial channels there is a piston, which is rigidly connected to the upper part of the rod and has axial channels, a cavity is located under the piston.

EFFECT: provides for transfer of readings of lower reservoir in online mode to control station, equalizes forces acting on stock on the side of fluid of upper and lower formations, provides for opening and closing of fluid flow from upper and lower reservoir at various positions of valve.

1 cl, 3 dwg