Patents by Inventor Todd A. WEIRMEIR

Todd A. WEIRMEIR 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).

  • SHIFTING TOOL AND ASSOCIATED METHODS FOR OPERATING DOWNHOLE VALVES
    Publication number: 20220127931
    Abstract: A shifting tool can include a flow restrictor outwardly extendable in a well. A method can include flowing a fluid through a flow restriction, thereby creating a pressure differential and, in response, shifting a closure member while the fluid flows through the flow restriction. Another method can include positioning a shifting tool in a tubular string, then outwardly extending keys from the shifting tool in response to fluid pressure applied to the shifting tool, then engaging the keys with a profile formed in a closure member, and then shifting the closure member between open and closed positions.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 28, 2022
    Inventors: Corey M. KSHYK, Todd A. WEIRMEIR, Andrew J. HANSON
  • Shifting tool and associated methods for operating downhole valves
    Patent number: 11261701
    Abstract: A shifting tool can include a flow restrictor outwardly extendable in a well. A method can include flowing a fluid through a flow restriction, thereby creating a pressure differential and, in response, shifting a closure member while the fluid flows through the flow restriction. Another method can include positioning a shifting tool in a tubular string, then outwardly extending keys from the shifting tool in response to fluid pressure applied to the shifting tool, then engaging the keys with a profile formed in a closure member, and then shifting the closure member between open and closed positions.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: March 1, 2022
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Corey M. Kshyk, Todd A. Weirmeir, Andrew J. Hanson
  • SHIFTING TOOL AND ASSOCIATED METHODS FOR OPERATING DOWNHOLE VALVES
    Publication number: 20190063185
    Abstract: A shifting tool can include a flow restrictor outwardly extendable in a well. A method can include flowing a fluid through a flow restriction, thereby creating a pressure differential and, in response, shifting a closure member while the fluid flows through the flow restriction. Another method can include positioning a shifting tool in a tubular string, then outwardly extending keys from the shifting tool in response to fluid pressure applied to the shifting tool, then engaging the keys with a profile formed in a closure member, and then shifting the closure member between open and closed positions.
    Type: Application
    Filed: August 22, 2017
    Publication date: February 28, 2019
    Inventors: Corey M. Kshyk, Todd A. WEIRMEIR, Andrew J. HANSON