Patents by Inventor Xi Lin Liu

Xi Lin Liu 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: 11891864
    Abstract: A drilling rig having a lift arm, which may be an auxiliary lift arm provided in addition to a primary lifting cable system of the drilling rig. The lift arm may be configured to hoist and/or manipulate drill collar, drill pipe, or other drilling pipe or conduit. The lift arm may be coupled to a mast of the drilling rig and may have a cantilevered boom extending therefrom. The boom may be configured to pivot between alignment, or near alignment, with well center and a racking board. The lift arm may additionally have a pipe engaging element coupled to the boom. The pipe engaging element may be configured to couple to stands or lengths of drilling pipe. The pipe engaging element may be raised and lowered together with or relative to the boom via a lift line controllable via a hydraulic cylinder, winch, or other suitable mechanism for withdrawing and releasing the line.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 6, 2024
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Robert Benjamin Donnally, Xi Lin Liu
  • Publication number: 20220178215
    Abstract: A drilling rig having a lift arm, which may be an auxiliary lift arm provided in addition to a primary lifting cable system of the drilling rig. The lift arm may be configured to hoist and/or manipulate drill collar, drill pipe, or other drilling pipe or conduit. The lift arm may be coupled to a mast of the drilling rig and may have a cantilevered boom extending therefrom. The boom may be configured to pivot between alignment, or near alignment, with well center and a racking board. The lift arm may additionally have a pipe engaging element coupled to the boom. The pipe engaging element may be configured to couple to stands or lengths of drilling pipe. The pipe engaging element may be raised and lowered together with or relative to the boom via a lift line controllable via a hydraulic cylinder, winch, or other suitable mechanism for withdrawing and releasing the line.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 9, 2022
    Inventors: Robert Benjamin Donnally, Xi Lin Liu
  • Patent number: 11035183
    Abstract: Systems and methods for clearing a top drive from an operational area of the mast such that operations may be performed along the rail without interference from the top drive. Systems and methods of the present disclosure provide for arranging the top drive in a parked configuration outside of, or generally behind, the mast. A guide rail may be arranged within an operational area of a mast and may have a pair of interchangeable rail sections, each of which may be configured for arrangement in either an operating configuration, where the rail section may be positioned within the operational area of the mast to form part of the rail, or a parked configuration, where the rail section may be positioned outside of the operational area. Each interchangeable rail section may be pivotable about an axis and may be arranged on a pivotable gate of the mast.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 15, 2021
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Robert Benjamin Donnally, Xi Lin Liu, Jay John Thiessen
  • Publication number: 20200040673
    Abstract: Systems and methods for clearing a top drive from an operational area of the mast such that operations may be performed along the rail without interference from the top drive. Systems and methods of the present disclosure provide for arranging the top drive in a parked configuration outside of, or generally behind, the mast. A guide rail may be arranged within an operational area of a mast and may have a pair of interchangeable rail sections, each of which may be configured for arrangement in either an operating configuration, where the rail section may be positioned within the operational area of the mast to form part of the rail, or a parked configuration, where the rail section may be positioned outside of the operational area. Each interchangeable rail section may be pivotable about an axis and may be arranged on a pivotable gate of the mast.
    Type: Application
    Filed: June 4, 2019
    Publication date: February 6, 2020
    Inventors: Robert Benjamin Donnally, Xi Lin Liu, Jay John Thiessen
  • Patent number: 9441423
    Abstract: A system for erecting a drilling rig mast includes a substructure having an open area that is defined therein by two laterally spaced-apart substructure sides and a first mast section that is adapted to be positioned at least partially within the open area of the substructure after the first mast section has been removably connected to the substructure. The system further includes, among other things, a second mast section that is adapted to be removably connected to the first mast section the said first mast section has been removably connected to the substructure, and a mast connection apparatus that is adapted to removably connect the second mast section to the first mast section when an upper end of the first mast section is raised relative to a lower end of the second mast section.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: September 13, 2016
    Assignee: National Oilwell Varco, L.P.
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Publication number: 20150059262
    Abstract: A system for erecting a drilling rig mast includes a substructure having an open area that is defined therein by two laterally spaced-apart substructure sides and a first mast section that is adapted to be positioned at least partially within the open area of the substructure after the first mast section has been removably connected to the substructure. The system further includes, among other things, a second mast section that is adapted to be removably connected to the first mast section the said first mast section has been removably connected to the substructure, and a mast connection apparatus that is adapted to removably connect the second mast section to the first mast section when an upper end of the first mast section is raised relative to a lower end of the second mast section.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Inventors: Robert Benjamin Donnally, Chungiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Patent number: 8875911
    Abstract: Systems and methods for rig assembly and for erecting a mast of a rig and such systems with roller apparatus to facilitate movement of a mast section from a mover. In a first embodiment, the method includes erecting a rig mast section on a substructure, the substructure including a first substructure box spaced-apart from a second substructure box, the first substructure box comprising a first upper box above a first lower box and the second substructure box comprising a second upper box above a second lower box.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: November 4, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Robert B. Donnally, Chunqiao Ren, Xi Lin Liu, Yan Yu, Peng Yue, Wei Wang
  • Patent number: 8549815
    Abstract: Methods for connection parts of a mast of a drilling rig without using a crane or other lifting machine are disclosed. In certain aspects, these methods include moving parts of a mast to be assembled with trucks and positioning the parts with the trucks to facilitate their connection. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: October 8, 2013
    Assignee: National Oilwell Varco L.P.
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Patent number: 8468753
    Abstract: Systems and methods for erecting a drilling rig. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: June 25, 2013
    Assignee: National Oilwell Varco L.P.
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Publication number: 20120047820
    Abstract: Systems and methods for rig assembly and for erecting a mast of a rig and such systems with roller apparatus to facilitate movement of a mast section from a mover. In a first embodiment, the method includes erecting a rig mast section on a substructure, the substructure including a first substructure box spaced-apart from a second substructure box, the first substructure box comprising a first upper box above a first lower box and the second substructure box comprising a second upper box above a second lower box.
    Type: Application
    Filed: April 20, 2010
    Publication date: March 1, 2012
    Inventors: Robert B. Donnally, Chunqiao Ren, Xi Lin Liu, Yan Yu, Peng Yue, Wei Wang
  • Patent number: 8047303
    Abstract: Methods and systems for installing a drawworks on a drilling rig, the method, in certain aspects, including moving a drawworks on movement apparatus on the ground adjacent a drill floor of a rig, connecting the drawworks to the drill floor, moving the movement apparatus away from the rig, and raising the drill floor with the drawworks thereon using raising apparatus of a rig substructure supporting the drill floor. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: November 1, 2011
    Assignee: National Oilwell Varco L.P.
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Publication number: 20090218137
    Abstract: Methods and systems for installing a drawworks on a drilling rig, the method, in certain aspects, including moving a drawworks on movement apparatus on the ground adjacent a drill floor of a rig, connecting the drawworks to the drill floor, moving the movement apparatus away from the rig, and raising the drill floor with the drawworks thereon using raising apparatus of a rig substructure supporting the drill floor. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Publication number: 20090218139
    Abstract: Systems and methods for erecting a drilling rig. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu
  • Publication number: 20090218144
    Abstract: Methods for connection parts of a mast of a drilling rig without using a crane or other lifting machine are disclosed. In certain aspects, these methods include moving parts of a mast to be assembled with trucks and positioning the parts with the trucks to facilitate their connection. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui Chun Sheng, Yan Yu