DOWNHOLE CONTROLLED ELECTROMECHANICAL VALVE Russian patent published in 2018 - IPC E21B34/16 E21B47/06 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to technology of oilfield equipment and can be used for simultaneous-separate exploitation of seams and during current repair of wells without their killing. Valve consists of a casing, a sub-box with a typical connecting connector or with a wet contact connector, a micro electric motor powered from “zero point” of ESP motor, a reducer with a screw, a hollow rod with a passageway for measuring the pressure in the formation, differential piston, leveling well and reservoir pressure, auxiliary and controlled valve, to which the choke tube with internal gap is hermetically connected, in which the formation pressure measuring tube passes, docked with the passageway in the hollow stem and hermetically connected to the auxiliary valve. Socket tube is made from above with radial holes, and from bottom - with teardrop-shaped fittings and is damped with a sealed plug inside which lower end of tube for measuring formation pressure passes. Against the unions in the nipple is a groove, hydraulically connected through the fittings with the inlet channels in the nipple.

EFFECT: technical result is to ensure a reliable and smooth regulation of well production rate and to measure formation pressure during operation of formation.

1 cl, 4 dwg