WELL FLUID REGULATOR Russian patent published in 2015 - IPC E21B43/12 E21B34/06 

FIELD: oil-and-gas industry.

SUBSTANCE: device comprises well with horizontal section extending over bed with different permeability zones, string with cable, electric valves, pressure and temperature transducers, one or several packers tightly isolating the zones of different permeability. Said transducers are connected with metering assy at well mouth while valves are connected with control unit. Note here that pump for product extraction via annulus is arranged above said valves. Outlets of valves are connected with pipe inner space while inlets, apart from the valve at valve bottom, are connected with annulus. Every valve is composed of encase motor with reduction gear with shaft articulated with pusher. Inner space and case of the latter are filled with lubricant. Ball valve can tightly interact with its seat while cup with inlet channels is arranged under said seat. Note here that inlet of the valve nearby the mouth is communicated with annulus. Ball of every valve is connected by basket with pusher to be displaced therewith. The valves are arranged opposite the well appropriate zone for communication by inlet channels therewith. Inlet channels of every valve are provided with appropriate temperature and pressure transducers+. Valve cups are tightly and rigidly connected with the valve body and provided, apart from the valve nearby the bottom, with lengthwise overflow channels. Body of every valve apart from that nearby the bottom is provided with adapter bush to revolve and to be fixed at transportation position. Pusher inner cavity houses the floating piston and is connected by rod end with technological channels to pipe inner space while head end is connected with space above said pusher.

EFFECT: enhanced performances, independent extraction of products from every interval.

5 dwg