Patents by Inventor Ronald C. Bishop

Ronald C. Bishop 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 reducing plunger seal wear on automatic casing swab lift systems
    Patent number: 6637515
    Abstract: An apparatus is disclosed for improving plunger seal life on a casing swab system. The apparatus includes a diameter adapter disposed between an upper end of a wellbore casing and a lubricator adapted to receive a plunger therein. The diameter adapter is configured to provide a substantially constant internal diameter between the lubricator and the upper end of the casing. A method is also disclosed which includes retaining a casing swab plunger in a lubricator adapted to receive it for at least an amount of time sufficient to enable entrapped gas and fluids substantially to escape from the plunger seal material.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: October 28, 2003
    Assignee: ConocoPhillips Company
    Inventors: Ronald C. Bishop, David P. Gregg
  • Method and apparatus for reducing plunger seal wear on automatic casing swab lift systems
    Publication number: 20020170718
    Abstract: An apparatus is disclosed for improving plunger seal life on a casing swab system. The apparatus includes a diameter adapter disposed between an upper end of a wellbore casing and a lubricator adapted to receive a plunger therein. The diameter adapter is configured to provide a substantially constant internal diameter between the lubricator and the upper end of the casing. A method is also disclosed which includes retaining a casing swab plunger in a lubricator adapted to receive it for at least an amount of time sufficient to enable entrapped gas and fluids substantially to escape from the plunger seal material.
    Type: Application
    Filed: April 6, 2001
    Publication date: November 21, 2002
    Inventors: Ronald C. Bishop, David P. Gregg