Patents by Inventor Zachary F. Walton

Zachary F. Walton 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).

  • Plugging of a flow passage in a subterranean well
    Patent number: 9790754
    Abstract: A method of plugging a flow passage in a well can include conveying a plug into an isolation tool in the well, and then contracting a plug seat of the isolation tool. An isolation tool for plugging a flow passage in a subterranean well can include a piston, and a longitudinally displaceable plug seat. The plug seat longitudinally displaces in response to displacement of the piston. Another method of plugging a flow passage can include conveying a plug into an isolation tool in the well, and then longitudinally displacing a plug seat of the isolation tool, thereby radially contracting the plug seat.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: October 17, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Zachary R. Murphree, Michael L. Fripp, Zachary F. Walton
  • PLUGGING OF A FLOW PASSAGE IN A SUBTERRANEAN WELL
    Publication number: 20150300115
    Abstract: A method of plugging a flow passage in a well can include conveying a plug into an isolation tool in the well, and then contracting a plug seat of the isolation tool. An isolation tool for plugging a flow passage in a subterranean well can include a piston, and a longitudinally displaceable plug seat. The plug seat longitudinally displaces in response to displacement of the piston. Another method of plugging a flow passage can include conveying a plug into an isolation tool in the well, and then longitudinally displacing a plug seat of the isolation tool, thereby radially contracting the plug seat.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 22, 2015
    Inventors: Zachary R. Murphree, Michael L. Fripp, Zachary F. Walton