Patents by Inventor Howard W. McKinzie

Howard W. McKinzie 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).

  • Methods using dual acting pumps or dual pumps to achieve core annular flow in producing wells
    Patent number: 6076599
    Abstract: A system is disclosed for the more efficient production of heavy or viscous crudes in oil wells. A cased wellbore into a production zone is provided with a single production tubing string from the production zone to the surface. A dual pumping system or dual action pumping system is used to separately flow produced heavy crude and produced geometrical manner to induce core annular flow of the heavy crude and a portion of produced water to the earth's surface.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: June 20, 2000
    Assignee: Texaco Inc.
    Inventor: Howard W. McKinzie