Patents by Inventor W. John McKeachnie

W. John McKeachnie 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).

  • Patent number: 7798236
    Abstract: The present invention generally provides a pressure isolation plug for managing a wellbore with multiple zones. The pressure isolation plug generally includes a body with a bore extending therethrough, a first disintegratable ball sized and positioned to restrict upward fluid flow through the bore, wherein the disintegratable ball disintegrates when exposed to wellbore conditions for a first amount of time. The plug also includes a second ball sized and positioned to restrict downward fluid flow through the bore.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: September 21, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: W. John McKeachnie, Michael McKeachnie, Scott Williamson, Rocky A. Turley
  • Patent number: 7779926
    Abstract: Embodiments of the present invention generally relate to an adapter kit for use between a setting tool and a wellbore plug. In one embodiment, a method for setting a plug in a cased wellbore is provided. The method includes deploying a tool string in the wellbore using a run-in string, the tool string comprising: a setting tool coupled to the run-in string, an adapter kit, comprising an adapter sleeve, and a plug comprising a sealing member. The method further includes actuating the setting tool, wherein the setting tool exerts a force on the adapter sleeve which transfers the force to the plug, thereby expanding the sealing member into engagement with an inner surface of the casing. The method further includes separating the setting tool from the plug, wherein the adapter sleeve remains with the plug.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: August 24, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, W. John McKeachnie
  • Publication number: 20080128133
    Abstract: Embodiments of the present invention generally relate to an adapter kit for use between a setting tool and a wellbore plug. In one embodiment, a method for setting a plug in a cased wellbore is provided. The method includes deploying a tool string in the wellbore using a run-in string, the tool string comprising: a setting tool coupled to the run-in string, an adapter kit, comprising an adapter sleeve, and a plug comprising a sealing member. The method further includes actuating the setting tool, wherein the setting tool exerts a force on the adapter sleeve which transfers the force to the plug, thereby expanding the sealing member into engagement with an inner surface of the casing. The method further includes separating the setting tool from the plug, wherein the adapter sleeve remains with the plug.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 5, 2008
    Inventors: Rocky A. Turley, W. John McKeachnie
  • Patent number: 7350582
    Abstract: The present invention generally provides a pressure isolation plug for managing a wellbore with multiple zones. The pressure isolation plug generally includes a body with a bore extending therethrough, a first disintegratable ball sized and positioned to restrict upward fluid flow through the bore, wherein the disintegratable ball disintegrates when exposed to wellbore conditions for a first amount of time. The plug also includes a second ball sized and positioned to restrict downward fluid flow through the bore.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 1, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventors: W. John McKeachnie, Michael McKeachnie, Scott Williamson, Rocky A. Turley