UNIT FOR SIMULTANEOUS SEPARATE OPERATION OF FORMATIONS Russian patent published in 2020 - IPC E21B43/14 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to oil industry and can be used for simultaneous separate operation of several formations by one well. Proposed plant comprises control station, ground data recording unit, top and bottom electric-centrifugal pumps with hydraulic protection arranged on both sides of submersible electric motor with hollow thermometric system. Under the lower electrically-centrifugal pump there is a packer of support or other type with a bypass channel inside it and a sealed cable input, a unit for disconnection of channels with installed in it bottom-hole instruments for monitoring the operation of upper and lower formations, a check valve, a sliding disconnector unit tightly connected to the shank, in the lower part of which there is a filter. Depth devices can be equipped with adjustable valves, which allows for direct periodic measurements by cutting off one of the beds, as well as regulating inflow of borehole fluid of each formation if necessary.

EFFECT: technical result consists in improvement of efficiency of simultaneous separate operation of formations of one well, performance of separate measurements and investigations of each formation.

3 cl, 4 dwg