ADJUSTABLE FLOW-THROUGH SECTION STATOR, CONTROLLED BY A DRIVE, FOR SEPARATION OF FLOW IN DOWNHOLE TOOLS Russian patent published in 2019 - IPC E21B4/02 E21B21/12 E21B17/18 

FIELD: mining.

SUBSTANCE: group of inventions relates to production of hydrocarbons. System for separation of flow in well shaft includes main pipeline, which determines main current line through it, a flow divider located in hydraulic communication with the main pipeline downstream of the main current line, determining the first and second fluid flow lines passing from the main current line, and comprising the tubular member front edge within the main pipeline, and wherein stator is at least partially located within tubular element inner part, assembled turbine in hydraulic communication with the first current line downstream of the flow divider, consisting of a stator located on the first current line, comprising a plurality of stator blades configured to support a generally fixed position relative to the main pipeline during passage of the fluid along the first current line, rotor rotating relative to stator due to passage of fluid flow along first current line; and a drive connected to at least one stator blade and configured to move at least one stator blade to adjust the hydraulic resistance along the first current line.

EFFECT: selective restriction of flow along the first current line passing through the turbine, and thus control of the interconnected flow passing along one of the second current lines.

18 cl, 5 dwg