UNIT FOR DUAL OPERATION OF MULTILAYER WELL (VERSIONS) Russian patent published in 2024 - IPC F04D13/10 E21B34/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil production and can be used for dual operation (DO) of multilayer well. In compliance with first version, for simultaneous separate operation of multilayer well contains tubing string, electrically driven centrifugal pump, submersible motor, upper and lower packers, upper and lower electric valves. Upper and lower electric valves are arranged in series one above the other, connected to each other by means of connecting coupling, at the inlet of the upper and lower electric valves there are respectively upper and lower self-regenerating filters of well fluid, under the lower self-regenerating filter there is a docking tool having a cone and a rod, between which there is a collar. According to the second version, the installation for simultaneous-separate operation of a multilayer well contains a tubing string, electrically driven centrifugal pump, submersible motor, upper and lower packers, upper and lower electric valves. Upper and lower electric valves are arranged in series one above the other, connected to each other by means of connecting coupling, at the inlet of the upper and lower electric valves there are respectively upper and lower self-regenerating filters of well fluid, under the lower self-regenerating filter there is a coupling tool having a rod and a collar, which is placed between the rod and the through channel of the lower packer.

EFFECT: increase in the through channel and increase in the capacity of the installation for the DO of a multilayer well, protection of the downhole pumping equipment from mechanical impurities, preventing complications during operation of the installation.

8 cl, 2 dwg