FIELD: oil industry.
SUBSTANCE: group of inventions relates to a flow resistance control system intended for use in underground wells. Said system can comprise means installed with possibility of movement under action of the multicomponent fluid flow. At change of ratio of target fluid and undesired fluid in the above multicomponent fluid the resistance to multicomponent fluid flow is changed. Other system can comprise means installed with possibility of rotation under action of multicomponent fluid flow. Fluid flow switch is designed to deflect said multicomponent fluid relative to at least two flow lines. Present invention relates to adjustment of flow resistance in underground well, which can provide movement of said agent under action of multicomponent fluid flow and change of multicomponent fluid flow resistance in response to change of ratio between target fluid and undesired fluid in the above multicomponent fluid. Systems of flow resistance control can use swelling materials and elements with aerodynamic profile.
EFFECT: technical result consists in improvement of efficiency of controlling flow resistance.
61 cl, 27 dwg
