Patent ID: 9109423
Filing Date: 2015-08-18
Classification: E21B,F15C,Y10T

Abstract:
1. An apparatus for autonomously controlling flow of fluid comprising: a pathway dependent resistance system; and a flow ratio control system for controlling the pathway dependent resistance system, an output of the flow ratio control system in fluid communication with at least an input of the pathway dependent resistance system, the flow ratio control system having at least a first passageway and a second passageway for defining a ratio of fluid flow through the first passageway and second passageway, the ratio of fluid flow autonomously responsive to change in a characteristic of the fluid flow, wherein the characteristic is viscosity, wherein the first passageway of the fluid ratio control system is more viscosity-dependent than the second passageway, and wherein the first passageway is made of a swellable material, the passageway constricting when the material swells.