DOWNHOLE ELECTROVALVE (OPTIONS) Russian patent published in 2022 - IPC E21B34/06 E21B43/12 

FIELD: oil industry.

SUBSTANCE: inventions relates to the oil industry, in particular to downhole electrovalves for killing, development, flushing, hydraulic fracturing of a productive formation, subsequent control and regulation of inflow. An electrovalve for installation in a well in the composition of downhole pipes is configured to control the fluid flow between the space inside the pipes and the space behind the pipes at the location of the valve. The solenoid valve contains a hollow cylindrical body with holes, a sleeve with holes located inside the body, made with the possibility of moving between the open position and the closed position according to a signal received via a remote communication channel. The electric motor is connected to the sleeve. The housing is made with the possibility of performing the functions of the stator of the electric motor. The hollow shaft of the electric motor rotor is directly connected to the movable sleeve by means of a screw pair formed by a thread on the outer surface of the sleeve and a thread on the inner surface of the hollow shaft.

EFFECT: providing the possibility of electrical switching of the valve while increasing its reliability.

12 cl, 3 dwg