Patents by Inventor Brian Lee Doud

Brian Lee Doud 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: 20200332597
    Abstract: A rotary steerable tool for steering a drill string can include a tool collar, a plurality of pad pushers, and a plurality of fasteners. The pad pushers can each be positionable within a respective cavity of the tool collar. Each pad pusher can be coupled to a pad retention housing that has an engagement hole and a through hole spaced apart from the engagement hole. The pad pushers can be interconnected by a plurality of fasteners. Each fastener can extend between adjacent pad retention housings to interconnect the plurality of pad pushers around the tool collar.
    Type: Application
    Filed: March 2, 2018
    Publication date: October 22, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brian Lee Doud, Neelesh V. Deolalikar
  • Publication number: 20200332607
    Abstract: Hardfacing is used to protect wear surfaces of drill bits and other downhole tools. A hardfacing member can be formed by heating a metal matrix material, e.g., via a laser process, injecting a plurality of particles into the heated metal matrix material, disposing the mixture on at least a portion of a substrate thereby forming a hardfacing member having a particle-embedded metal matrix material, and attaching the hardfacing member to a main body.
    Type: Application
    Filed: August 29, 2018
    Publication date: October 22, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Krutibas Panda, Brian Lee Doud
  • Publication number: 20200332599
    Abstract: A steering head for steering a drill string may include a pad pusher including a steering pad and a piston. The steering pad may have a pivot axis, and be rotatable about the pivot axis between retracted and extended positions. The pad pusher may further include a motion restrictor to restrict rotation about the pivot axis. The steering head may further include a housing having a motion restrictor disposed at a position corresponding to the pad pusher motion restrictor. The pad pusher motion restrictor may be engageable with the housing motion restrictor to restrict motion of the steering pad relative to the housing.
    Type: Application
    Filed: March 2, 2018
    Publication date: October 22, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brian Lee Doud, Neelesh V. Deolalikar
  • Publication number: 20200318436
    Abstract: A rotary steerable tool for steering a drill string may include a tool collar extending along a longitudinal axis of the tool, a pad pusher, a pad retention housing, and a piston liner. The pad pusher may be rotatable about a pivot axis thereof between retracted and extended positions relative to the tool collar, for steering the drill string. The piston liner may be coupled to the pad retention housing and have a piston channel that defines a curved profile. The piston liner may provide sealing contact against a perimeter of the piston upon pivoting of the pad pusher through the piston channel along the curved profile, relative to the piston liner.
    Type: Application
    Filed: March 2, 2018
    Publication date: October 8, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brian Lee Doud, Neelesh V. Deolalikar
  • Publication number: 20200277825
    Abstract: The present disclosure provides a system for improving wear resistance of a downhole tool component using a bonded diamond compact (BDC) construct. The BDC construct includes a BDC element and an encapsulation layer bonded to the BDC element. The encapsulation layer may fully encapsulate the BDC element. The downhole tool component may be a drill bit, push the bit pad, or mud motor beating assembly. The BDC construct may be disposed in a plug section of the downhole tool component. The encapsulation layer may form an insulating layer over the BDC element to protect the BDC element from thermal damage during hard-facing or brazing of the BDC construct to the downhole tool component.
    Type: Application
    Filed: December 24, 2019
    Publication date: September 3, 2020
    Inventors: Krutibas Panda, Brian Lee Doud, Chakrapani Subramaniam
  • Publication number: 20200263501
    Abstract: Rotary steerable drilling systems are subjected to harsh environments including high temperature and pressure. A metallic seal ring prevents or limits erosive wear by limiting the velocity of the fluid that traversers from the high pressure side of the metallic seal ring to the low pressure side of the metallic seal ring to a value that can be sustained by the material of the metallic seal ring. A metallic seal ring is capable of withstand the wear and tear of drilling mud or other fluids used for downhole drilling operations. A metallic seal ring includes a mating configuration that creates a seal as the metallic seal ring is contracted when or a tension is applied when disposed or positioned in the piston bore. The metallic seal ring maintains an adequate seal to protect the components of a pad assembly over the life or specified duration of a downhole drilling operation.
    Type: Application
    Filed: June 19, 2018
    Publication date: August 20, 2020
    Inventors: Brian Lee Doud, Neelesh Deolalikar, Wei Zhang