Patents by Inventor Vijay Karode

Vijay Karode 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).

  • Drill string/annulus sealing with swellable materials
    Patent number: 8353355
    Abstract: A well system can include a drill string having a drill bit at an end thereof, and a swellable seal exposed to fluid in an annulus external to the drill string. The swellable seal can include a swellable material which swells in response to the fluid comprising a predetermined activating agent. A method of preventing undesired release of fluid from a wellbore can include displacing a drill string through the wellbore, thereby drilling the wellbore, and installing in the wellbore a swellable seal which, in response to the fluid comprising a predetermined activating agent, reduces flow through an annulus formed radially between the drill string and the wellbore. Another well system can include a swellable seal carried into a wellbore on a drill string, with the swellable seal including a swellable material which swells in response to a fluid in the wellbore comprising a predetermined activating agent.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: January 15, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lee M. Smith, Alan B. Webb, Vijay Karode, Karl M. Tunstall
  • DRILL STRING/ANNULUS SEALING WITH SWELLABLE MATERIALS
    Publication number: 20120006569
    Abstract: A well system can include a drill string having a drill bit at an end thereof, and a swellable seal exposed to fluid in an annulus external to the drill string. The swellable seal can include a swellable material which swells in response to the fluid comprising a predetermined activating agent. A method of preventing undesired release of fluid from a wellbore can include displacing a drill string through the wellbore, thereby drilling the wellbore, and installing in the wellbore a swellable seal which, in response to the fluid comprising a predetermined activating agent, reduces flow through an annulus formed radially between the drill string and the wellbore. Another well system can include a swellable seal carried into a wellbore on a drill string, with the swellable seal including a swellable material which swells in response to a fluid in the wellbore comprising a predetermined activating agent.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 12, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Lee M. SMITH, Alan B. WEBB, Vijay KARODE, Karl M. TUNSTALL