Patents by Inventor Lester Barett Dupler

Lester Barett Dupler 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: 10954754
    Abstract: Assemblies and methods are provided for positioning a sealing tool within a receptacle and pressure testing a seal between the sealing tool and the receptacle. The assembly may be coupled to the sealing tool for latching the sealing tool into the receptacle. The assembly may include a projection that is movable between a coupled position and an uncoupled position. In the coupled position, the projection may couple the assembly to the sealing tool. In the uncoupled position, the projection may be positioned such that the assembly is not coupled to the sealing tool. The projection may move from the coupled position to the uncoupled position in response to determining a seal is established between the sealing tool and the receptacle.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 23, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Matthew Bradley Stokes, Christian Alexander Ramirez, Lester Barett Dupler, Borisa Lajesic
  • Publication number: 20200300062
    Abstract: Assemblies and methods are provided for positioning a sealing tool within a receptacle and pressure testing a seal between the sealing tool and the receptacle. The assembly may be coupled to the sealing tool for latching the sealing tool into the receptacle. The assembly may include a projection that is movable between a coupled position and an uncoupled position. In the coupled position, the projection may couple the assembly to the sealing tool. In the uncoupled position, the projection may be positioned such that the assembly is not coupled to the sealing tool. The projection may move from the coupled position to the uncoupled position in response to determining a seal is established between the sealing tool and the receptacle.
    Type: Application
    Filed: November 14, 2017
    Publication date: September 24, 2020
    Inventors: Matthew Bradley Stokes, Christian Alexander Ramirez, Lester Barett Dupler, Borisa Lajesic
  • Patent number: 9140081
    Abstract: A system for circumferentially aligning a downhole latch subsystem in a wellbore. The system includes an outer tool assembly including a latch coupling having a latch profile and a slot subassembly having an axially extending slot profile. An inner tool assembly is positionable within the outer tool assembly. The inner tool assembly includes a latch assembly having a plurality of latch keys and an orienting subassembly having a plurality orienting keys. In operation, after axial alignment of the orienting subassembly with the slot subassembly, rotation of the orienting subassembly causes operable engagement of at least one orienting key with the slot profile and, thereafter, axial alignment of the latch assembly with the latch coupling causes operable engagement of the latch keys with the latch profile.
    Type: Grant
    Filed: February 1, 2014
    Date of Patent: September 22, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Stuart Alexander Telfer, Espen Dahl, David Joe Steele, Lester Barett Dupler
  • Publication number: 20150060086
    Abstract: A running tool for installing a liner string having a profile in a wellbore. The running tool includes a mandrel, a prop assembly positioned about the mandrel and a collet assembly slidably positioned on the mandrel. The collet assembly has a generally cylindrical collet collar with a plurality of collet fingers extending therefrom each having a collet head on a distal end thereof. In a first position, the prop assembly radially outwardly flexes the collet fingers such that the collet heads engage the profile of the liner string and are operable to apply a force in the downhole direction to the liner string. In a second position, the collet assembly is remote from the prop assembly such that the collet fingers radially inwardly contract disengaging the collet heads from the profile of the liner string, thereby enabling removal of the running tool from the liner string.
    Type: Application
    Filed: August 5, 2014
    Publication date: March 5, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Dan Saurer, David Joe Steele, Wesley Paul Dietz, Lester Barett Dupler
  • Publication number: 20150060049
    Abstract: A collet assembly for installing a liner string having a profile in a wellbore. The collet assembly has a generally cylindrical collet collar with a plurality of collet fingers extending therefrom each having a collet head on a distal end thereof. In a first position, the collet fingers are in a radially outwardly flexed state such that the collet finger extend substantially parallel with the central axis of the collet collar. In a second position, the collet fingers are in a radially relaxed state such that the collet fingers extend from the collet collar to the collet heads at an angle toward the central axis of the collet collar.
    Type: Application
    Filed: August 5, 2014
    Publication date: March 5, 2015
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Dan Saurer, David Joe Steele, Wesley Paul Dietz, Lester Barett Dupler
  • Publication number: 20140144617
    Abstract: A system for circumferentially aligning a downhole latch subsystem in a wellbore. The system includes an outer tool assembly including a latch coupling having a latch profile and a slot subassembly having an axially extending slot profile. An inner tool assembly is positionable within the outer tool assembly. The inner tool assembly includes a latch assembly having a plurality of latch keys and an orienting subassembly having a plurality orienting keys. In operation, after axial alignment of the orienting subassembly with the slot subassembly, rotation of the orienting subassembly causes operable engagement of at least one orienting key with the slot profile and, thereafter, axial alignment of the latch assembly with the latch coupling causes operable engagement of the latch keys with the latch profile.
    Type: Application
    Filed: February 1, 2014
    Publication date: May 29, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Stuart Alexander Telfer, Espen Dahl, David Joe Steele, Lester Barett Dupler
  • Patent number: 8678097
    Abstract: A system for circumferentially aligning a downhole latch subsystem in a wellbore. The system includes an outer tool assembly including a latch coupling having a latch profile and a slot subassembly having an axially extending slot profile. An inner tool assembly is positionable within the outer tool assembly. The inner tool assembly includes a latch assembly having a plurality of latch keys and an orienting subassembly having a plurality orienting keys. In operation, after axial alignment of the orienting subassembly with the slot subassembly, rotation of the orienting subassembly causes operable engagement of at least one orienting key with the slot profile and, thereafter, axial alignment of the latch assembly with the latch coupling causes operable engagement of the latch keys with the latch profile.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: March 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Stuart Alexander Telfer, Espen Dahl, David Joe Steele, Lester Barett Dupler