Patents by Inventor Cassius A. Elston

Cassius A. Elston 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).

  • Publication number: 20240052723
    Abstract: A technique facilitates actuation of a downhole device, such as an isolation valve. According to an embodiment, the downhole device may be in the form of an isolation valve member, e.g. a ball valve element, actuated between positions by a mechanical section which may comprise a shifting linkage. Actuation of the mechanical section, and thus actuation of the isolation valve member, is achieved by a trip saver section controlled according to a pressure signature which may be applied from a suitable location, e.g. from the surface. The trip saver section comprises a housing having an internal actuation piston coupled with the mechanical section. The trip saver section further comprises a pilot piston and a plurality of chambers formed in a wall of the housing and arranged to enable shifting of the actuation piston in response to a predetermined series of pressure pulses or other suitable pressure signature.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 15, 2024
    Inventors: Cassius Elston, Thomas Meeks, Venkata Siva Reddy Battula, Ashish Sharma
  • Patent number: 11808110
    Abstract: A technique facilitates actuation of a downhole device, such as an isolation valve. According to an embodiment, the downhole device may be in the form of an isolation valve member, e.g. a ball valve element, actuated between positions by a mechanical section which may comprise a shifting linkage. Actuation of the mechanical section, and thus actuation of the isolation valve member, is achieved by a trip saver section controlled according to a pressure signature which may be applied from a suitable location, e.g. from the surface. The trip saver section comprises a housing having an internal actuation piston coupled with the mechanical section. The trip saver section further comprises a pilot piston and a plurality of chambers formed in a wall of the housing and arranged to enable shifting of the actuation piston in response to a predetermined series of pressure pulses or other suitable pressure signature.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: November 7, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Cassius Elston, Thomas Meeks, Venkata Siva Reddy Battula, Ashish Sharma
  • Publication number: 20230332484
    Abstract: A system includes a downhole valve, a pressure gauge mounted on the downhole valve, and a power source for powering the pressure gauge. The pressure gauge is programmed to interpret a pressure command characterized by at least two variables of a pressure signal to open the downhole valve.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 19, 2023
    Inventors: Cassius Elston, Venkata Siva Reddy Battula, Ashish Sharma, Diana Orzechowski
  • Patent number: 11739612
    Abstract: An isolation valve system includes a well string having an isolation valve including a ball rotatably mounted to a pair of inserts for rotation about a fixed axis, an arm coupled to the ball at a position offset from the fixed axis, and a mandrel connected to an actuation end of the arm, the mandrel and the actuation end of the arm being disposed uphole of the ball. Via the actuation end of the arm, the mandrel forces rotation of the ball from a closed position to an open position by moving in a linear direction away from the ball, which allows flow of fluid along a through hole of the ball.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 29, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Cassius Elston, Brian Walther, Venkata Siva Reddy Battula, Ashish Sharma, Diana Orzechowski
  • Publication number: 20220186585
    Abstract: A technique facilitates actuation of a downhole device, such as an isolation valve. According to an embodiment, the downhole device may be in the form of an isolation valve member, e.g. a ball valve element, actuated between positions by a mechanical section which may comprise a shifting linkage Actuation of the mechanical section, and thus actuation of the isolation valve member, is achieved by a trip saver section controlled according to a pressure signature which may be applied from a suitable location, e.g. from the surface. The trip saver section comprises a housing having an internal actuation piston coupled with the mechanical section. The trip saver section further comprises a pilot piston and a plurality of chambers formed in a wall of the housing and arranged to enable shifting of the actuation piston in response to a predetermined series of pressure pulses or other suitable pressure signature.
    Type: Application
    Filed: April 21, 2020
    Publication date: June 16, 2022
    Inventors: Cassius Elston, Thomas Meeks, Venkata Siva Reddy Battula, Ashish Sharma
  • Publication number: 20210388694
    Abstract: An isolation valve system includes a well string having an isolation valve including a ball rotatably mounted to a pair of inserts for rotation about a fixed axis, an arm coupled to the ball at a position offset from the fixed axis, and a mandrel connected to an actuation end of the arm, the mandrel and the actuation end of the arm being disposed uphole of the ball. Via the actuation end of the arm, the mandrel forces rotation of the ball from a closed position to an open position by moving in a linear direction away from the ball, which allows flow of fluid along a through hole of the ball.
    Type: Application
    Filed: September 16, 2019
    Publication date: December 16, 2021
    Inventors: Cassius Elston, Brian Walther, Venkata Siva Reddy Battula, Ashish Sharma, Diana Orzechowski
  • Publication number: 20080201159
    Abstract: A system and method for tracking an innovation. The system and method determine one or more actions requested by a user with respect to stored information associated with the innovation, determine an identification of the user, and log the one or more actions and the identification of the user.
    Type: Application
    Filed: August 7, 2007
    Publication date: August 21, 2008
    Inventors: John J. Gabrick, Cassius A. Elston
  • Publication number: 20070276675
    Abstract: Methods, apparatuses, and systems for an innovation management system.
    Type: Application
    Filed: October 3, 2005
    Publication date: November 29, 2007
    Inventors: John Gabrick, Cassius Elston, Charles Monfradi, Michael Sarnowski
  • Publication number: 20060259321
    Abstract: An intellectual property management method and system. The method and system enter information associated with an innovation, store the information and a date the information was stored in a database, and receive a certification including the information associated with the innovation and the date the information was stored in the database.
    Type: Application
    Filed: July 24, 2006
    Publication date: November 16, 2006
    Inventors: John Gabrick, Cassius Elston
  • Publication number: 20050240428
    Abstract: A system for automating and managing an intellectual property environment in an organization over a network of computers. The system has user interface displays on each of the computers, and includes computer readable code devices in computer readable media for displaying, and methods for displaying, a number of management tools in the form of frames or screens or pages that provide for users submitting and sharing innovations, innovation analysis, finding experts for collaboration and evaluation of innovations, highlighting, spotlighting and showcasing innovations and innovation development, creating and responding to innovation challenges, and timelining, tasking and workflow peculiar to innovation management in an organization.
    Type: Application
    Filed: November 10, 2004
    Publication date: October 27, 2005
    Inventors: John Gabrick, Cassius Elston, Charles Monfradi, Mark Infantino, Michael Sarnowski, Andrew Formica
  • Publication number: 20040073443
    Abstract: A system for streamlining the process of creating, preserving and protecting proprietary assets. The system identifies, classifies, compiles, tracks and routes real-time data automatically on a continuous basis, and provides instant access to stored database information, such as trade secret archives, patent filings, computed valuations, user information and a variety of detailed reports. An employee has instant access to her latest innovations and proprietary materials, and constant supervision over them.
    Type: Application
    Filed: June 10, 2003
    Publication date: April 15, 2004
    Inventors: John J. Gabrick, Cassius A. Elston