Patents by Inventor Thomas HELBERT

Thomas HELBERT 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).

  • Retention system for bottom hole assembly and whipstock
    Patent number: 10704328
    Abstract: Methods and apparatus for releasing a lead mill of a BHA from a whipstock in a wellbore include slideably releasing the BHA from the whipstock without relative rotation and without destruction of a retractable bolt. A system includes: a bias mechanism; a retractable bolt at least partially disposed in the bottom hole assembly and biased to a retracted position by the bias mechanism; and a retraction actuator capable of selectably opposing the bias of the retractable bolt. A method includes: coupling a whipstock to a BHA with a retention system, including: a retractable bolt biased to retract into the BHA; and a retraction actuator configured to resist the bias of the retractable bolt; and after the whipstock and BHA have been disposed in a wellbore, activating the retraction actuator so that retraction of the retractable bolt ensues.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: July 7, 2020
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Joshua Matthew Korf, David W. Teale, Thomas Helbert
  • RETENTION SYSTEM FOR BOTTOM HOLE ASSEMBLY AND WHIPSTOCK
    Publication number: 20190106940
    Abstract: Methods and apparatus for releasing a lead mill of a BHA from a whipstock in a wellbore include slideably releasing the BHA from the whipstock without relative rotation and without destruction of a retractable bolt. A system includes: a bias mechanism; a retractable bolt at least partially disposed in the bottom hole assembly and biased to a retracted position by the bias mechanism; and a retraction actuator capable of selectably opposing the bias of the retractable bolt. A method includes: coupling a whipstock to a BHA with a retention system, including: a retractable bolt biased to retract into the BHA; and a retraction actuator configured to resist the bias of the retractable bolt; and after the whipstock and BHA have been disposed in a wellbore, activating the retraction actuator so that retraction of the retractable bolt ensues.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 11, 2019
    Inventors: Joshua Matthew KORF, David W. TEALE, Thomas HELBERT