FLOW RESISTANCE VARIABLE SYSTEM (OPTIONS) CONTAINING THE FLOW CIRCULATION CONTROL DESIGN IN AN UNDERGROUND WELL

摘要

1. The system of variable resistance to flow, designed for use in an underground well, including: a flow chamber through which passes a fluid mixture having an inlet, outlet and containing at least one structure that prevents the change in the circular motion of the fluid mixture at the exit to radial movement to the exit. 2. The system according to claim 1, characterized in that the fluid mixture passes through the flow chamber in the well. The system according to claim 1, characterized in that the design increases the degree of counteraction to the change in the circular motion of the flow of the fluid mixture at the exit to the radial movement to the exit in response to at least one of the following events: a) increase in the speed of the fluid mixture, b) a decrease in the viscosity of the fluid mixture, c) a decrease in the ratio of the content of a given fluid mixture to undesirable in the composition of the fluid mixture, d) a decrease in the angle of entry of the fluid mixture into the flow chamber, and e) an increase in the collision of the flow of the fluid mixture with the structure. 4. The system according to claim 1, characterized in that at least one input consists of only one input. The system according to claim 1, characterized in that said construction comprises at least either a blade or a recess. The system according to claim 1, characterized in that said construction has a protrusion at least either inward or outward with respect to the chamber wall. The system according to claim 1, characterized in that the fluid mixture leaves the chamber through the outlet at an angle that varies depending on the ratio of the content of the desired fluid mixture to the undesirable in the composition of the fluid mixture. The system according to claim 1, characterized in that the fluid mixture passes in a more direct way from m to m