Patents by Inventor Odie R. S. Davis

Odie R. S. Davis 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).

  • Method and apparatus for gravel packing multiple zones
    Patent number: 4273190
    Abstract: A method of gravel packing multiple zones with a single trip of the operating string into a well without inducing fluid movement across zones, and without disturbing the zone being packed in reverse circulation. Apparatus is disclosed to perform the method, comprising a screen liner assembly surrounding a concentric operating string. Mechanical force on the operating string is used to change all tool modes of the apparatus. The operating string is accurately positioned with respect to the screen liner assembly at every zone level and zones may be easily relocated if necessary. Zones may be packed in any order, and a zone may be repacked, if necessary, during the same trip into the well.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: June 16, 1981
    Assignee: Halliburton Company
    Inventors: Eugene E. Baker, David D. Szarka, Odie R. S. Davis, Nolan M. Workman
  • Method and apparatus for gravel packing multiple zones
    Patent number: 4270608
    Abstract: A method of gravel packing multiple zones with a single trip of the operating string into a well without inducing fluid movement across zones, and without disturbing the zone being packed in reverse circulation. Apparatus is disclosed to perform the method, comprising a screen liner assembly surrounding a concentric operating string. Mechanical force on the operating string is used to change all tool modes of the apparatus. The operating string is accurately positioned with respect to the screen liner assembly at every zone level and zones may be easily relocated if necessary. Zones may be packed in any order, and a zone may be repacked, if necessary, during the same trip into the well.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: June 2, 1981
    Assignee: Halliburton Company
    Inventors: James D. Hendrickson, Pat M. White, Odie R. S. Davis, Nolan M. Workman, Eugene E. Baker, David D. Szarka