PLATFORM OF FLOW CONTROL VALVE Russian patent published in 2014 - IPC E21B34/10 E21B43/14 

FIELD: mining.

SUBSTANCE: group of inventions relates to mining and can be used in downhole valve systems. The downhole system comprises a tubing string extending into the isolated zone of the well, and a plurality of modules of fittings located in an isolated area, to control the movement of fluid medium between the passageway of the tubing string and the zone. Each module of the fitting comprises the appropriate fitting, replaceable in the module of fitting without disassembling the tubing string. Each module of fitting is independently controlled in relation to another module (s) of the fitting to pass selectively and block the flow through the appropriate fitting. The central passageway of the unit of modules is independent of fittings or the size of fittings. Modules of fittings are located along the perimeter around the outer part of the column of the tubing string.

EFFECT: providing the possibility to reduce the pressure generated by ground equipment of the well.

20 cl, 22 dwg