OIL PRODUCING PLANT Russian patent published in 2019 - IPC E21B43/12 E21B43/14 

Abstract RU 2691039 C1

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used for simultaneous separate extraction of fluid from two and more oil-bearing formations by one well. Oil producing plant includes tubing string (TC), centrifugal pump with electric drive (ECP) for extraction of well fluid, equipped with telemetry unit, connected by power cable with ground control station well (CS), unit for regulating flows and accounting for formation products (URFA), containing sensors for monitoring parameters P, Q, C, T of extracted formation fluid with instrumentation on panel CS and adjustable electric drive valves (AEV), connected by telemechanic control system and installed in separate channels URFA, communicating inputs with oil-bearing formations, bottomhole packer with anchor device separating oil-bearing formations of the well, which is connected by a shank for liquid intake from the lower oil-bearing formation of the well to the inlet into a separate channel URFA docking sealed telescopic joint, and a support packer installed above the upper formation, forming an above-the-packer cavity. Electric drive ECP is equipped with shank, and isolated channels URFA at outlet are connected by offtake header, made with outlet branch pipe, last URFA is fixed in the support packer, connected by the second docking sealed telescopic joint, in which the communication cables are made URFA with CS, which ends are connected to receiving-transmitting assemblies of cable connector, fixed in free ends of shank and outlet nozzle of manifold, with possibility of their connection by cable connector simultaneously with tight telescopic connection of outlet pipe of manifold and shank from electric drive ECP. In the wall of the outlet branch pipe of the collector, above the support packer, there are radial windows communicating separate channels URFA with input module ECP via the offtake header and the above-packer cavity of the well. Cable connector can be made with contactless receiving-transmitting assemblies.

EFFECT: technical result consists in reduction of colmatage of pores of wells by excluding hydrodynamic communication of above-packer cavity with oil-bearing formations before replacement of equipment and conservation of wells.

1 cl, 1 dwg

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RU 2 691 039 C1

Authors

Nikolaev Oleg Sergeevich

Dates

2019-06-07Published

2018-12-06Filed