SELF-CONTAINED UNIT OF FLUID FLOW CONTROL IN HORIZONTAL WELL Russian patent published in 2015 - IPC E21B34/08 F16K21/04 

Abstract RU 2558083 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to production of hydrocarbons and can be used in operation of wells, in particular, for alignment of profile of fluid inflow along the length of a horizontal well. The device contains input and output devices between which, at least, two series arranged regulating stages consisting of normally open valve and hydraulic resistance and/or the shut step containing one or several valves installed in parallel with the fixed position of a lock are series placed. Besides, the device contains an external casing in which, at least, the named device elements are partially placed. The valves in regulating and/or shut step contain configuration devices for holding and switching of the gate. The hydraulic resistance contains devices of configuring of its value in the regulating stage.

EFFECT: automation of fluid inflow regulation.

14 cl

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RU 2 558 083 C1

Authors

Zhuravlev Oleg Nikolaevich

Shishov Andrej Vladimirovich

Nukhaev Marat Tokhtarovich

Dates

2015-07-27Published

2014-01-17Filed