Autonomous fluid control device having a movable valve plate for downhole fluid selection

摘要: An apparatus and method are described for autonomously controlling flow of fluid in a subterranean well, where is controlled based on characteristic, such as viscosity or density, which changes over time. Fluid flows into vortex assembly centrifugal force imparted to the fluid. A less viscous will have relatively greater velocity than more The exits chamber by both outlet peripheral outlet. autonomous valve element moves between an open position, freely through outlet, closed restricted. moved fluid, that having higher thereby reducing total assembly.