Patents by Inventor Srihari Chebolu

Srihari Chebolu 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: 11434710
    Abstract: A downhole tool includes a mandrel configured to be coupled to a liner, the mandrel defining a first port and a second port, the first and second ports being axially offset from one another and extending radially through a wall of the mandrel, a slips assembly coupled to the mandrel, an outer cylinder received around the mandrel and configured to transmit an axially-directed force onto the slips assembly, and a retaining assembly positioned radially between the mandrel and the outer cylinder. The retaining assembly has a first configuration that prevents the outer cylinder from moving relative to the mandrel, and a second configuration that permits the outer cylinder to move axially along the mandrel and set the slips assembly. The retaining assembly is configured to actuate from the first configuration to the second configuration in response to a pressure in the first port exceeding a pressure in the second port.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: September 6, 2022
    Assignee: INNOVEX DOWNHOLE SOLUTIONS, INC.
    Inventors: Bobby F. Goad, Jr., Srihari Chebolu, Evan Lowe
  • Publication number: 20220025724
    Abstract: A downhole tool includes a mandrel configured to be coupled to a liner, the mandrel defining a first port and a second port, the first and second ports being axially offset from one another and extending radially through a wall of the mandrel, a slips assembly coupled to the mandrel, an outer cylinder received around the mandrel and configured to transmit an axially-directed force onto the slips assembly, and a retaining assembly positioned radially between the mandrel and the outer cylinder. The retaining assembly has a first configuration that prevents the outer cylinder from moving relative to the mandrel, and a second configuration that permits the outer cylinder to move axially along the mandrel and set the slips assembly. The retaining assembly is configured to actuate from the first configuration to the second configuration in response to a pressure in the first port exceeding a pressure in the second port.
    Type: Application
    Filed: July 24, 2020
    Publication date: January 27, 2022
    Inventors: Bobby F. Goad, Jr., Srihari Chebolu, Evan Lowe
  • Patent number: 10822899
    Abstract: A technique facilitates use of a liner hanger in a wide variety of environments by distributing loading. The liner hanger may comprise a liner hanger cone, e.g. an annular cone body, having a plurality of slots for receiving corresponding pipe-gripping slips. The slip slots and the corresponding pipe-gripping slips are staggered both longitudinally and circumferentially to distribute loading. An actuator may be used to shift the slips into gripping engagement with a surrounding pipe, e.g. casing, to improve the load distribution on the surrounding pipe and liner hanger cone once the liner is supported.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: November 3, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Travis Raymond Burke, James Hall, Raghavendar Ranganathan, Srihari Chebolu
  • Patent number: 10808507
    Abstract: A technique facilitates actuation and use of a liner hanger in a wide variety of environments. Depending on the application, the liner hanger may be conveyed downhole within a casing located in a wellbore. The liner hanger comprises slips which may be set against the casing by applying a pressurized fluid through a liner hanger port to a liner hanger actuator. After the slips are set, the liner hanger may be actuated to form a metal-to-metal seal which blocks further fluid flow through the port, thus isolating the port during subsequent downhole operations.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: October 20, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Travis Raymond Burke, James Hall, Raghavendar Ranganathan, Srihari Chebolu
  • Patent number: 10597986
    Abstract: A technique facilitates hanging of a liner in a borehole. According to the technique, a liner hanger and a liner may be deployed downhole into a borehole. A wellbore anchoring device of the liner hanger is initially actuated to engage a surrounding surface and to resist downward movement of the liner. Additionally, a hold down anchor is subsequently actuated to resist upward movement of the liner. The hold down anchor may be released via mechanical manipulation of the liner hanger.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: March 24, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Travis Raymond Burke, James Hall, Raghavendar Ranganathan, Srihari Chebolu, David E. Hirth
  • Publication number: 20180347308
    Abstract: A technique facilitates actuation and use of a liner hanger in a wide variety of environments. Depending on the application, the liner hanger may be conveyed downhole within a casing located in a wellbore. The liner hanger comprises slips which may be set against the casing by applying a pressurized fluid through a liner hanger port to a liner hanger actuator. After the slips are set, the liner hanger may be actuated to form a metal-to-metal seal which blocks further fluid flow through the port, thus isolating the port during subsequent downhole operations.
    Type: Application
    Filed: September 7, 2016
    Publication date: December 6, 2018
    Inventors: Travis Raymond Burke, James Hall, Raghavendar Ranganathan, Srihari Chebolu
  • Publication number: 20180283117
    Abstract: A technique facilitates use of a liner hanger in a wide variety of environments by distributing loading. The liner hanger may comprise a liner hanger cone, e.g. an annular cone body, having a plurality of slots for receiving corresponding pipe-gripping slips. The slip slots and the corresponding pipe-gripping slips are staggered both longitudinally and circumferentially to distribute loading. An actuator may be used to shift the slips into gripping engagement with a surrounding pipe, e.g. casing, to improve the load distribution on the surrounding pipe and liner hanger cone once the liner is supported.
    Type: Application
    Filed: September 23, 2016
    Publication date: October 4, 2018
    Inventors: Travis Raymond BURKE, James HALL, Raghavendar RANGANATHAN, Srihari CHEBOLU
  • Publication number: 20180238151
    Abstract: A technique facilitates hanging of a liner in a borehole. According to the technique, a liner hanger and a liner may be deployed downhole into a borehole. A wellbore anchoring device of the liner hanger is initially actuated to engage a surrounding surface and to resist downward movement of the liner. Additionally, a hold down anchor is subsequently actuated to resist upward movement of the liner. The hold down anchor may be released via mechanical manipulation of the liner hanger.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 23, 2018
    Inventors: Travis Raymond Burke, James Hall, Raghavendar Ranganathan, Srihari Chebolu, David E. Hirth