Patents by Inventor Gary L. MUELLER

Gary L. MUELLER 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).

  • Use of downhole isolation valve to sense annulus pressure
    Patent number: 9650884
    Abstract: A method of drilling a wellbore includes deploying a drill string into the wellbore through a casing string disposed in the wellbore. The casing string has a pressure responsive element and a hydraulic line in communication with the element and extending along the casing string. While drilling the formation, the method includes monitoring a pressure of the hydraulic line to ensure control of the formation.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: May 16, 2017
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Joe Noske, Gary L. Mueller
  • USE OF DOWNHOLE ISOLATION VALVE TO SENSE ANNULUS PRESSURE
    Publication number: 20150083494
    Abstract: A method of drilling a wellbore includes deploying a drill string into the wellbore through a casing string disposed in the wellbore. The casing string has a pressure responsive element and a hydraulic line in communication with the element and extending along the casing string. The method further includes: drilling the wellbore into a formation by injecting drilling fluid through the drill string and rotating a drill bit of the drill sting; and while drilling the formation, monitoring a pressure of the hydraulic line to ensure control of the formation.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Joe NOSKE, Gary L. MUELLER