Patents by Inventor Dennis James Haggerty

Dennis James Haggerty 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).

  • Patent number: 11566508
    Abstract: Aspects and features include a system and method for wellbore perforation analysis and design. The system takes into account geomechanical considerations. In some examples the system determines wellbore parameters associated with a wellbore in a formation, calculates a current effective stress value associated with a hole in the formation, and determines a maximum effective stress value and a minimum wellbore pressure value. The system can then produce perforating job parameters to maximize a perforation while maintaining at least the minimum wellbore pressure value. In some examples, the system makes use of a parts database to determine job parameters that can implemented based on available parts.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 31, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Brenden Michael Grove, Dennis James Haggerty, Jacob Andrew McGregor
  • Publication number: 20200284136
    Abstract: Aspects and features include a system and method for wellbore perforation analysis and design. The system takes into account geomechanical considerations. In some examples the system determines wellbore parameters associated with a wellbore in a formation, calculates a current effective stress value associated with a hole in the formation, and determines a maximum effective stress value and a minimum wellbore pressure value. The system can then produce perforating job parameters to maximize a perforation while maintaining at least the minimum wellbore pressure value. In some examples, the system makes use of a parts database to determine job parameters that can implemented based on available parts.
    Type: Application
    Filed: October 10, 2019
    Publication date: September 10, 2020
    Inventors: Brenden Michael GROVE, Dennis James HAGGERTY, Jacob Andrew MCGREGOR
  • Patent number: 10253603
    Abstract: A method of controlling a dynamic pressure created during detonation of a shaped charge comprises: positioning the shaped charge in a wellbore, wherein the shaped charge comprises a main explosive load, wherein a substance is included in the main explosive load or is positioned adjacent to the main explosive load, wherein the substance increases or decreases the dynamic pressure or increases or decreases the duration of a pressure pulse created during detonation of the shaped charge; whereas a substantially identical shaped charge without the substance does not increase or decrease the dynamic pressure nor increase or decrease the duration of the pressure pulse during detonation. A method of controlling the balance of a portion of a wellbore comprises: positioning the shaped charge in the portion of the wellbore; and creating a desired balance in the portion of the wellbore.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: April 9, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Antony Forbes Grattan, Dennis James Haggerty, Corbin S. Glenn
  • Publication number: 20150376992
    Abstract: A method of controlling a dynamic pressure created during detonation of a shaped charge comprises: positioning the shaped charge in a wellbore, wherein the shaped charge comprises a main explosive load, wherein a substance is included in the main explosive load or is positioned adjacent to the main explosive load, wherein the substance increases or decreases the dynamic pressure or increases or decreases the duration of a pressure pulse created during detonation of the shaped charge; whereas a substantially identical shaped charge without the substance does not increase or decrease the dynamic pressure nor increase or decrease the duration of the pressure pulse during detonation. A method of controlling the balance of a portion of a wellbore comprises: positioning the shaped charge in the portion of the wellbore; and creating a desired balance in the portion of the wellbore.
    Type: Application
    Filed: February 5, 2013
    Publication date: December 31, 2015
    Inventors: Antony Forbes Grattan, Dennis James Haggerty, Corbin S. Glenn