Patents by Inventor Shilin Chen

Shilin Chen 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: 20210164183
    Abstract: Provided is an underwater repair system for a cavity region of a concrete panel rock-fill dam panel, including a moving platform, a work cabin, a pressure drainage apparatus, a traction apparatus, and a positioning apparatus; the traction apparatus controlling the movement of the moving platform on the surface of a dam concrete panel; the positioning apparatus transmits a detection position, the work cabin is a pressure cabin, the work cabin being connected to the pressure drainage apparatus, and a drill apparatus and grouting apparatus being arranged in the work cabin; the moving platform moves into the cavity region, and the pressure drainage apparatus starts up to drain the water in the work cabin, a partially closed waterless space being formed inside the work cabin, the drill apparatus drilling the concrete panel at the upper end of the cavity region and the grouting apparatus subsequently implementing grouting to complete the repair.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 3, 2021
    Inventors: Yingli WU, Ruiji YI, Sheng YANG, Wanli GUO, Denghua LI, Limin XIAO, Jingping MING, Qiming ZHONG, Hongxia FAN, Hua FU, Hua LING, Fang WANG, Ting SHEN, Yong LI, Yongyong CAO, Jun LI, Ming ZHANG, Zhaosheng ZHANG, Zehua HUANGFU, Shilin LI, Juhua ZHANG, Jiefu WU, Zhe HU, Lifei GONG, Gang WU, Yufeng HUANGFU, Chen CHEN, Jing YUAN
  • Patent number: 10982491
    Abstract: The present disclosure relates to fixed-cutter drill bits with track-set primary cutters and backup cutters, methods of designing such bits, systems for implementing such methods, and systems for using such fixed-cutter drill bits to drill a wellbore in a geological formation.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 20, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Publication number: 20210079733
    Abstract: A drill bit includes a bit body defining a rotational axis, a plurality of blades on the bit body, a plurality of cutting elements on the plurality of blades, each cutting element defining a sweep profile about the rotational axis, a first depth of cut controller (DOCC) movably secured to one of the plurality of blades and movable in response to contact by a formation when drilling, and a second DOCC movably secured to the one of the plurality of blades, the second DOCC coupled to the first DOCC such that movement of the first DOCC changes a height of the second DOCC relative to a height of the first DOCC.
    Type: Application
    Filed: March 26, 2018
    Publication date: March 18, 2021
    Inventors: Shilin Chen, Gregory Christopher Grosz
  • Publication number: 20200386055
    Abstract: Systems and methods are disclosed for selecting a drill bit design that reduces or eliminates bit induced stick-slip. In some embodiments, each of a set of test drill bits is correlated with stick-slip events, wherein each of the test drill bits has a different design pattern comprising a combination of structural attributes. The design pattern stick-slip correlation includes, for each of the test drill bits, detecting variations in motion of the test drill bit during drilling operation. Stick-slip for each of the test drill bits is detected based on the detected variations in motion of the test drill bits during operation. The correlation further includes in response to detecting stick-slip, recording a stick-slip event in association with the corresponding test drill bit.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 10, 2020
    Inventor: Shilin Chen
  • Patent number: 10851622
    Abstract: In accordance with some embodiments of the present disclosure, a method of modeling a downhole drilling tool is disclosed. The method may include identifying a location for each of a plurality of cutlets associated with each of a plurality of cutting elements. The method may further include calculating a depth of cut for each cutlet based on the location of the cutlet and a three dimensional model of a borehole bottom. Additionally, the method may include generating a three dimensional model of a rock chip for each cutting element, in response to at least one depth of cut being greater than a critical depth of cut, each three dimensional model including a two dimensional model of a rock chip associated with each cutlet. The method may also include updating the three dimensional model of the borehole bottom by removing each three dimensional model of a rock chip.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: December 1, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 10781642
    Abstract: A multi-layer downhole drilling tool designed for drilling a wellbore including a plurality of formations is disclosed. The drilling tool includes a bit body and a plurality of primary blades and secondary blades with respective leading surfaces on exterior portions of the bit body. The drilling tool further includes a plurality of first layer cutting elements and second layer cutting elements located on the leading surfaces of the primary blades and secondary blades, respectively. Each second layer cutting element is under-exposed with respect to the corresponding first layer cutting element. The amount of under-exposure is selected according to each second layer cutting element having an initial critical depth of cut greater than an actual depth of cut for a first drilling distance and a critical depth of cut equal to zero at a target drilling depth.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: September 22, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Publication number: 20200158642
    Abstract: This invention relates to a sensor that detects bacteria cells comprising (a) a primary negatively charged, nanoparticulate sensing material; (b) a secondary positively charged, fluorescent sensing material; (c) a housing; and (d) at least one illuminator; wherein said housing contains said primary negatively charged, nanoparticulate sensing material, said secondary positively charged fluorescent sensing material and a sample potentially comprising bacteria in aqueous medium, wherein said illuminator provides light of at least one pre-specified wavelength ?i to excite at least said secondary positively charged, fluorescent material, wherein said secondary positively charged, fluorescent material electrostatically attached to bacteria cells provides at least one fluorescent response at a second different wavelength ?n wherein both i and n are integers, wherein said negatively charged, nanoparticulate sensing material electrostatically attached to said fluorescent material suppresses fluorescing of said fluores
    Type: Application
    Filed: March 27, 2018
    Publication date: May 21, 2020
    Inventors: Laura Sutarlie, Sian Yang Ow, Shilin Chen, Xiaodi Su
  • Patent number: 10650108
    Abstract: Downhole drilling tools designed and manufactured to minimize or reduce imbalance forces and wear by disposing cutting elements in cutter groups and cutter sets in a level of force balance and by placing impact and/or wear resistant cutters on blades subject to high impact forces and/or large loadings. Manufacturing costs may be reduced by placing inexpensive cutters on blades not subject to high impact forces and/or loadings. Some embodiments comprise designing downhole tools with combinations of thicker blades to receive high impact forces and/or loadings with thinner blades. Some embodiments comprise designing downhole drilling tools with optimized fluid-flow properties. Designing methods may comprise performing simulations on a designed tool, evaluating respective forces acting on cutters during simulated engagement with a downhole (uniform and transitional) and/or evaluating wear on cutters and bit, and/or CFD simulations to evaluate fluid-flow optimization on a tool.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: May 12, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Publication number: 20200115963
    Abstract: The present disclosure relates to fixed-cutter drill bits with track-set primary cutters and backup cutters, methods of designing such bits, systems for implementing such methods, and systems for using such fixed-cutter drill bits to drill a wellbore in a geological formation.
    Type: Application
    Filed: July 13, 2018
    Publication date: April 16, 2020
    Inventor: Shilin Chen
  • Publication number: 20200102792
    Abstract: Methods for simulating a downhole drilling operation include estimating the geometry, i.e., the shape, size of cuttings or rock chips generated by engagement of a drill bit with a geologic formation. Each cutting element on the drill bit may produce rock chips of different geometry, and the geometry of rock chips generated by a particular cutting element may change over a predetermined interval. The geometry and other properties rock chips predicted for an interval may be recorded, and a distribution may be calculated based on categorizing each of the predicted rock chips into predefined categories and determining the relative number of rock chips in each category. The distribution may be useful in drill bit design, determining required mud flow characteristics for a drilling operation, and facilitating rotation of a drill string by preventing undesirable interactions of the rock chips with the drill bit, a drill pipe or other downhole equipment.
    Type: Application
    Filed: June 21, 2017
    Publication date: April 2, 2020
    Inventor: Shilin Chen
  • Publication number: 20200095859
    Abstract: A method for bit-rock interaction modeling includes selecting a parameter for a drill bit model. The parameter includes a geometrical factor of a cutter represented in the drill bit model. The method further includes dynamically adjusting the drill bit model to a displaced position, updating a shape of a wellbore model formed by the displaced position of the drill bit model, and determining local and initial forces on the drill bit model based on the shape of the wellbore model and the parameter for the drill bit model. The method further includes determining, by a processor, at least one coefficient for a bit matrix based on the local force and the initial force on the drill bit model; and storing the bit matrix in a memory, wherein the bit matrix is indicative of an interaction between a drill bit represented by the drill bit model and a formation substrate.
    Type: Application
    Filed: July 7, 2017
    Publication date: March 26, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 10590711
    Abstract: A multi-layer downhole drilling tool designed for directional and horizontal drilling is disclosed. The drilling tool includes a bit body including a rotational axis extending therethrough. A plurality of primary blades are disposed on exterior portions of the bit body and a plurality of secondary blades are disposed on exterior portions of the bit body between the primary blades. The drilling tool further includes a plurality of first-layer cutting elements disposed on exterior portions of the primary blades and a plurality of second-layer cutting elements disposed on exterior portions of the secondary blades. The second-layer cutting elements are track set with the first-layer cutting elements in an opposite track set configuration.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: March 17, 2020
    Assignee: Multi-Chem Group, LLC
    Inventor: Shilin Chen
  • Publication number: 20200011138
    Abstract: A method of designing a drill bit is disclosed. The method includes determining a location of a bit coordinate system in a wellbore coordinate system and generating a bit profile based on an angular coordinate around a wellbore axis of a wellbore and the location of the bit coordinate system. The bit profile is based on a cutting edge of a first cutting element on an exterior portion of a first blade. The method also includes determining a cutting layer volume based on the bit profile and identifying a weak zone based on the cutting layer volume being less than a predefined minimum cutting layer volume. The method includes determining a location for a second cutting element on the exterior portion of a second blade based on the weak zone.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Inventor: Shilin Chen
  • Patent number: 10526850
    Abstract: A drill bit cutter having a shaped cutting element is disclosed. The cutter includes a substrate having a fixed portion, and a rotating portion rotatably attached to the fixed portion. The cutter also includes a cutting element secured to the rotating portion of the substrate, the cutting element having a non-circular cross-section in a plane perpendicular to a cutter axis of the rotating cutting element, the cross-section having a radially symmetric shape.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: January 7, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 10450804
    Abstract: A method of designing a drill bit is disclosed. The method includes determining a location of a bit coordinate system in a wellbore coordinate system and generating a bit profile based on an angular coordinate around a wellbore axis of a wellbore and the location of the bit coordinate system. The bit profile is based on a cutting edge of a first cutting element on an exterior portion of a first blade. The method also includes determining a cutting layer volume based on the bit profile and identifying a weak zone based on the cutting layer volume being less than a predefined minimum cutting layer volume. The method includes determining a location for a second cutting element on the exterior portion of a second blade based on the weak zone.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 22, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 10450842
    Abstract: A method of designing a downhole drilling tool may include generating a three dimensional (3D) downhole drilling tool model and simulating engagement of the drilling tool model with a 3D model of a borehole bottom. First and second cutting zones of first and second cutting elements may be determined based on areas of the first and second cutting elements that engage the borehole bottom, where the first and second cutting zones respectively have first and second cutting zone shapes. First and second cutting forces for the first and second cutting elements may be calculated based on the respective first and second cutting zone shapes. A drilling efficiency of the drilling tool model may be modeled based at least on the first cutting force and the second cutting force and a design parameter of the drilling tool model may be modified based on the drilling efficiency of the drilling tool model.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: October 22, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gregory Christopher Grosz, Shilin Chen
  • Patent number: 10428588
    Abstract: In accordance with some embodiments of the present disclosure, a method of designing a drill bit comprises determining placements on a drill bit for a plurality of cutting elements at a plurality of radial coordinates of the drill bit. The method further comprises determining a substrate-based critical depth of cut for a substrate of each cutting element and generating a substrate-based critical depth of cut control curve based on the substrate-based critical depth of cut at each radial coordinate. The method also comprises comparing the substrate-based critical depth of cut control curve and the threshold critical depth of cut control curve and adjusting a drill bit design parameter if the substrate-based critical depth of cut control curve is less than or equal to the threshold critical depth of cut control curve at a radial coordinate.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: October 1, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Shilin Chen, Eric Lawrence Helgesen
  • Patent number: 10428587
    Abstract: A downhole drilling tool designed for drilling a wellbore is disclosed. The drilling tool includes a bit body, and a first plurality of blades and a second plurality of blades on exterior portions of the bit body. A first group of cutting elements is located on exterior portions of the first plurality of blades. A second group of cutting elements is located on the second plurality of blades and under-exposed with respect to the first group of cutting elements. The first and second plurality of blades and the first group and second groups of cutting elements cooperate with each other to form a composite bit face profile such that each respective group of at least three neighbor cutting elements on the composite bit face profile is force balanced with respect to each other.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: October 1, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Publication number: 20190257157
    Abstract: A multi-layer downhole drilling tool designed for drilling a wellbore including a plurality of formations is disclosed. The drilling tool includes a bit body and a plurality of primary blades and secondary blades with respective leading surfaces on exterior portions of the bit body. The drilling tool further includes a plurality of first layer cutting elements and second layer cutting elements located on the leading surfaces of the primary blades and secondary blades, respectively. Each second layer cutting element is under-exposed with respect to the corresponding first layer cutting element. The amount of under-exposure is selected according to each second layer cutting element having an initial critical depth of cut greater than an actual depth of cut for a first drilling distance and a critical depth of cut equal to zero at a target drilling depth.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 22, 2019
    Inventor: Shilin Chen
  • Patent number: D912263
    Type: Grant
    Filed: August 22, 2020
    Date of Patent: March 2, 2021
    Inventors: Shilin Chen, Junhui Ou, Deqing Wan