Patents by Inventor Graeme J. Walker

Graeme J. Walker 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).

  • Slickline conveyed bottom hole assembly with tractor
    Patent number: 8151902
    Abstract: A bottom hole assembly is run into the wellbore on slickline with a tractor to assist in movement of the bottom hole assembly through a deviation in either direction. The tractor can have retractable drive components and can be responsive to tension in the slickline to turn it on and to avoid overrunning the slickline if driving out.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: April 10, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Gerald D. Lynde, Graeme J. Walker
  • Slickline Conveyed Bottom Hole Assembly with Tractor
    Publication number: 20100263856
    Abstract: A bottom hole assembly is run into the wellbore on slickline with a tractor to assist in movement of the bottom hole assembly through a deviation in either direction. The tractor can have retractable drive components and can be responsive to tension in the slickline to turn it on and to avoid overrunning the slickline if driving out.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 21, 2010
    Inventors: Gerald D. Lynde, Graeme J. Walker
  • Interventionless reservoir control systems
    Patent number: 7228914
    Abstract: Systems and methods for positively closing off a section of wellbore and, thereby providing reservoir control. Systems and methods are described for selectively closing off a section of a wellbore to fluid communication. The wellbore completion section may then be reopened to fluid communication upon reconnection of the upper completion section to the lower completion section. Advantageously, the systems and methods of the present invention generally preclude fluid communication between the annulus of the upper completion section and the flowbore of the lower completion section until the lower completion section is closed off to fluid flow.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: June 12, 2007
    Assignee: Baker Hughes Incorporated
    Inventors: Raymond D. Chavers, Graeme J. Walker, John M. Cobb, Alfredo Gomez