Patent ID: 6325153
Filing Date: 2001-12-04
Classification: E21B

Abstract:
A production fluid control system comprising a casing disposed in a downhole bore for receiving production fluid; tubing disposed in the casing with the outer surface of the tubing spaced from the inner surface of the casing to define an annular chamber for receiving the production fluid, the tubing having a plurality of openings formed in its walls; a plurality of valves respectively extending in the openings, each valve having a passage extending therethrough and communicating with the chamber and the interior of the tubing, each valve comprising a body member defining the passage and a valve member movable between a closed position relative to the passage to prevent any fluid flow through the passage and an open position to permit fluid flow from the chamber, through the passage, and into the interior of the tubing; a spring-loaded detente that is urged into engagement with the valve member in its open position and closed position to apply a force to the valve member to retain it in its open and closed position; and a control device for overcoming the force and moving the valve member from its open position to its closed position and from its closed position to its open position.