Patents by Inventor Michael Paul Zimmerman

Michael Paul Zimmerman 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).

  • Galvanically isolated exit joint for well junction
    Patent number: 8833439
    Abstract: A well system for forming a window in a casing string positioned in a wellbore. The system includes first and second steel casing joints (462, 464) interconnectable within the casing string. An aluminum exit joint (460) is positioned between the first and second steel casing joints (462, 464). The aluminum exit joint (460) has a first interconnection with the first steel casing joint (462) and a second interconnection with the second steel casing joint (464). The aluminum exit joint (460) is operable to have the window formed therethrough. A first sleeve (470) is positioned within the first interconnection to provide galvanic isolation between the aluminum exit joint (460) and the first steel casing joint (462). A second sleeve (472) is positioned within the second interconnection to provide galvanic isolation between the aluminum exit joint (460) and the second steel casing joint (464).
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: September 16, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael Paul Zimmerman, David Joe Steele, Pao-Shih Chen
  • Galvanically Isolated Exit Joint for Well Junction
    Publication number: 20120267093
    Abstract: A well system for forming a window in a casing string positioned in a wellbore. The system includes first and second steel casing joints (462, 464) interconnectable within the casing string. An aluminum exit joint (460) is positioned between the first and second steel casing joints (462, 464). The aluminum exit joint (460) has a first interconnection with the first steel casing joint (462) and a second interconnection with the second steel casing joint (464). The aluminum exit joint (460) is operable to have the window formed therethrough. A first sleeve (470) is positioned within the first interconnection to provide galvanic isolation between the aluminum exit joint (460) and the first steel casing joint (462). A second sleeve (472) is positioned within the second interconnection to provide galvanic isolation between the aluminum exit joint (460) and the second steel casing joint (464).
    Type: Application
    Filed: April 21, 2011
    Publication date: October 25, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Michael Paul Zimmerman, David Joe Steele, Pao-Shih Chen