FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil and gas industry, in particular - for production and injection wells operated by one or several oil and gas bearing formations at the same time, as a system that measures or records the main parameters of the fluid flow, and also controls the flow rate by changing the area of the passage channel. A downhole valve with a controlled electric drive contains a main body with a central bore, an inner protective casing of the bore, a flexible tubing (FT) sub, a control and power line from the "zero point" of the electric centrifugal pump. A motor, a gearbox and an electronics unit are rigidly fixed to the chassis in the passage channel, and a temperature control sensor connected to the electronics unit is mounted on the main body in the lower part of the passage channel. The screw pair converts the moment of rotation of the motor into a translational movement of the rod. The valve is additionally equipped with an external protective casing with outlet openings, forming a fluid movement channel with the inner protective casing, and a fluid composition control sensor installed in the fluid movement channel. Two identical paired temperature and pressure sensors are installed in the passage channel at a maximum distance from each other and are connected to the fluid movement channel. A through channel is made in the body along the longitudinal axis for outputting the transit communication line and power supply below the sub for flexible tubing (FT).
EFFECT: increase in the accuracy of the controlled parameters of the pressure and temperature of the reservoir, an increase in oil recovery.
1 cl, 1 dwg
