Patents by Inventor John Woodrow Harrell

John Woodrow Harrell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multi-valve fluid flow control system and method
    Patent number: 6325153
    Abstract: A system and method for controlling production fluid flow from a chamber extending between a casing disposed in a downhole bore and tubing disposed in the casing. A plurality of valves are disposed in respective openings formed in the tubing, and a passage is formed in each valve for connecting the chamber and the tubing interior. The valves are selectively closed to prevent any fluid flow through the passage, and selectively opened to permit fluid flow from the chamber, through the passage, and into the interior of the tubing. Thus, the volume of fluid passing from the chamber, through the valve members, and to the interior of the tubing is controlled.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 4, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventor: John Woodrow Harrell