Patents by Inventor Lewis A. Glenn

Lewis A. Glenn 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).

  • Pressure enhanced penetration with shaped charge perforators
    Patent number: 6223656
    Abstract: A downhole tool, adapted to retain a shaped charge surrounded by a superatmospherically pressurized light gas, is employed in a method for perforating a casing and penetrating reservoir rock around a wellbore. Penetration of a shaped charge jet can be enhanced by at least 40% by imploding a liner in the high pressure, light gas atmosphere. The gas pressure helps confine the jet on the axis of penetration in the latter stages of formation. The light gas, such as helium or hydrogen, is employed to keep the gas density low enough so as not to inhibit liner collapse.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: May 1, 2001
    Assignee: The Regents of the University of California
    Inventor: Lewis A. Glenn