DOWNHOLE DEVICE FOR SIMULTANEOUS-SEPARATE PUMPING OF AGENT Russian patent published in 2017 - IPC E21B43/12 E21B43/14 E21B43/20 

Abstract RU 2613398 C2

FIELD: oil and gas industry.

SUBSTANCE: downhole device comprises packers mounted at the compressor tubing column and module of flow control and metering of the injected agent of telecontrol system, including butterfly valves, combined by motor drive unit, telemetry sensors and a flow meter, the latter are positioned in the sealed sleeve cavities, arranged in parallel in the sealed casing bounded by direct flow multi-channel coupling from below and connected with geophysical cable passed through wellhead shut-off valve with instrumentation at the control station. The trunk of the upper packer is connected to the direct flow multi-channel coupling by the upper end and to the radially-running coupling by the lower end, there is a shank in the center hole of the radially-running coupling, interconnected to the one of the channels of direct flow multi-channel coupling by the end of a different close, which forms coaxial channels of separate agent pumping in the well layers with the trunk of the upper packer. Housing is limited by the intake manifold from above, connecting the cavity of compressor tubing column to sleeve cavities, wherefore an axial pup joint is designed in the electric wire unit block of chocke valves, connecting the compressor tubing column to a collector. A pressure sensor of the finishing agent is positioned at the pup joint input, connected to the geophysical cable with the control meter, placed at the control station, while locking seats interacting with throttle valves are mounted at the inputs of the diverging channels of the intake manifold.

EFFECT: device design simplification and improved reliability of well operation.

2 cl, 1 dwg

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RU 2 613 398 C2

Authors

Dates

2017-03-16Published

2016-03-02Filed