Patents by Inventor Thomas D. Helbert

Thomas D. 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).

  • Downhole casing pulling tool
    Patent number: 10309179
    Abstract: A pulling tool deploys on a workstring to retrieving a well component, such as casing or a liner, stuck downhole. The tool has an anchor, a puller, and an implement. The implement is supported on the end of the puller and engages the component. Hydraulic pressure supplied downhole moves at least one puller piston coupled to the implement along a piston mandrel to pull the implement and component. An anchor mandrel coupled to the workstring and the piston mandrel anchors the pulling tool downhole. The anchor has slips disposed on the anchor mandrel that engage in surrounding casing when an anchor piston disposed on the anchor mandrel is hydraulically actuated with the communicated pressure.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: June 4, 2019
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Mark C. Glaser, Richard J. Segura, Thomas D. Helbert
  • Downhole Casing Pulling Tool
    Publication number: 20160076327
    Abstract: A pulling tool deploys on a workstring to retrieving a well component, such as casing or a liner, stuck downhole. The tool has an anchor, a puller, and an implement. The implement is supported on the end of the puller and engages the component. Hydraulic pressure supplied downhole moves at least one puller piston coupled to the implement along a piston mandrel to pull the implement and component. An anchor mandrel coupled to the workstring and the piston mandrel anchors the pulling tool downhole. The anchor has slips disposed on the anchor mandrel that engage in surrounding casing when an anchor piston disposed on the anchor mandrel is hydraulically actuated with the communicated pressure.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Inventors: Mark C. Glaser, Richard J. Segura, Thomas D. Helbert
  • Methods of making multiple casing cuts
    Patent number: 7762330
    Abstract: Methods of removing casing from a wellbore, the method including disposing a drilling tool assembly in a wellbore, the drilling tool assembly including a cutting device, a spearing device, and a jarring device. The methods further including activating the cutting device, cutting a first casing segment, deactivating the cutting device and activating a spearing device. The method further including engaging the spearing device with the first casing segment, activating the jarring device to free the first casing segment, and removing the first casing segment from the wellbore.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: July 27, 2010
    Assignee: Smith International, Inc.
    Inventors: James E. Saylor, III, Thomas D. Helbert, Marc Henderson, Joeseph V. Hebert, Trygve Berthelsen, Randall Louis Hebert, Malcolm Perschke, A. J. Dach, III, Harshad Patil, Praful C. Desai
  • METHODS OF MAKING MULTIPLE CASING CUTS
    Publication number: 20100006290
    Abstract: Methods of removing casing from a wellbore, the method including disposing a drilling tool assembly in a wellbore, the drilling tool assembly including a cutting device, a spearing device, and a jarring device. The methods further including activating the cutting device, cutting a first casing segment, deactivating the cutting device and activating a spearing device. The method further including engaging the spearing device with the first casing segment, activating the jarring device to free the first casing segment, and removing the first casing segment from the wellbore.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: James E. Saylor, III, Thomas D. Helbert, Marc Henderson, Joseph V. Hebert, Trygve Berthelsen, Randall Louis Hebert, Malcolm Perschke, A. J. Dach, Harshad Patil, Praful Desai