Patents by Inventor Shanjun Li

Shanjun Li 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: 20200183043
    Abstract: The present invention provides a methodology and system for determining formation resistivity beyond a casing. Using devices to generate, direct, and measure electric signals, the travel speed, travel time, attenuation and phase shift of an electric signal traveling through the casing can be measured. Applying a relationship between the travel speed or travel time of an electric signal and the formation resistivity beyond a casing, it is then possible to determine the formation resistivity beyond a casing by measuring the travel speed or travel time or phase shift or attenuation of an electric signal.
    Type: Application
    Filed: September 10, 2017
    Publication date: June 11, 2020
    Inventor: Shanjun LI
  • Patent number: 10668460
    Abstract: A composite catalyst includes a carrier and noble metal particles supported by the carrier, wherein the carrier is a nitrogen-doped porous carbon composite material having a plurality of passages. The nitrogen-doped porous carbon composite material can include a nitrogen-doped porous carbon material and a plurality of metal oxide particles. The plurality of metal oxide particles can be uniformly distributed in the nitrogen-doped porous carbon material. The plurality of metal oxide particles can be partially exposed through the plurality of passages. The noble metal particles can be tightly combined with the exposed metal oxide particles to achieve recombination. And the noble metal particles can be at least one of Pd metal particles, Pt metal particles, Ru metal particles, Rh metal particles, Ir metal particles, Au metal particles, or a combination thereof.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: June 2, 2020
    Assignees: ZHEJIANG NHD COMPANY LTD., ZHEJIANG UNIVERSITY, SHANDONG NHU PHARMACEUTICAL CO., LTD., SHANDONG NHU VITAMIN CO., LTD.
    Inventors: Yong Wang, Lili Yu, Xiao Ma, Jianyong Mao, Zhe Wang, Shanjun Mao, Jingsi Tang, Haoran Li, Zhirong Chen
  • Patent number: 10605073
    Abstract: The present invention provides a methodology and system for formation boundary detection ahead and around of a drilling bit. By setting symmetrical design of receivers/transmitters around a transmitter/receiver and the direction of the receivers/transmitters, the system can measure the signals reflected by a formation boundary ahead of and around the drilling bit. The measured signals can be used to determine formation boundary positions.
    Type: Grant
    Filed: September 10, 2017
    Date of Patent: March 31, 2020
    Inventor: Shanjun Li
  • Publication number: 20200070132
    Abstract: The present disclosure provides a PdIn alloy catalyst including a carrier and Pd metal particles supported by the carrier, the carrier is a nitrogen-doped porous carbon composite material having a plurality of passages, Pd metal particles are distributed in the plurality of passages, the nitrogen-doped porous carbon composite material includes a nitrogen-doped porous carbon material, a plurality of indium oxide particles, and In metal particles. The In metal particles are exposed through the plurality of passages, the plurality of indium oxide particles are uniformly distributed in the nitrogen-doped porous carbon material, and In atoms of the In metal particles migrated to surfaces of Pd particles selectively occupy edge and corner positions of metal lattice of Pd metal particles. The present disclosure further provides a method for manufacturing the PdIn alloy catalyst and application thereof.
    Type: Application
    Filed: September 1, 2019
    Publication date: March 5, 2020
    Inventors: Yong WANG, Lili YU, Xiao MA, Jianyong MAO, Zhe WANG, Shanjun MAO, Jianqing LI, Gang CHEN, Haoran LI, Zhirong CHEN
  • Publication number: 20200070138
    Abstract: A composite catalyst includes a carrier and noble metal particles supported by the carrier, wherein the carrier is a nitrogen-doped porous carbon composite material having a plurality of passages. The nitrogen-doped porous carbon composite material can include a nitrogen-doped porous carbon material and a plurality of metal oxide particles. The plurality of metal oxide particles can be uniformly distributed in the nitrogen-doped porous carbon material. The plurality of metal oxide particles can be partially exposed through the plurality of passages. The noble metal particles can be tightly combined with the exposed metal oxide particles to achieve recombination. And the noble metal particles can be at least one of Pd metal particles, Pt metal particles, Ru metal particles, Rh metal particles, Ir metal particles, Au metal particles, or a combination thereof.
    Type: Application
    Filed: October 31, 2019
    Publication date: March 5, 2020
    Inventors: Yong WANG, Lili YU, Xiao MA, Jianyong MAO, Zhe WANG, Shanjun MAO, Jingsi TANG, Haoran LI, Zhirong CHEN
  • Patent number: 10416336
    Abstract: Improved algorithm for estimating anisotropic formation resistivity profile using a multi-component induction tool are disclosed. A method for estimating anisotropic formation resistivity profile of a formation comprises obtaining borehole corrected log data and determining at an azimuth angle of the formation. One or more formation bed boundaries are located and initial formation properties are calculated. One of a plurality of inversion windows is sequentially selected and a one-dimensional inversion of each of the sequentially selected one of the plurality of inversion windows is performed.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 17, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Shanjun Li, Dagang Wu, Luis E. San Martin, Yumei Tang
  • Patent number: 10302797
    Abstract: A system and method for improving the accuracy of galvanic tool measurements is described. The system (300) may include a survey electrode (A0) and a first monitor electrode (M1?) positioned above the survey electrode. A second monitor electrode (M1) may be positioned below the survey electrode, and a first conductive wire (307) may couple the first monitor electrode to the second monitor electrode. A first measurement point (302) may be located on the conductive wire, and a first resistive element (Rm1) may be coupled to the conductive wire.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: May 28, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Shanjun Li, Luis E. San Martin, Burkay Donderici
  • Patent number: 10175378
    Abstract: Various embodiments include apparatus and methods to make resistivity measurements in a borehole using tool having an array of electrodes operable to provide focused currents, measure corresponding voltages, and measure corresponding voltage differences to determine resistivity. Tools can be configured to operate at a plurality of modes when voltage differences at some frequencies are effectively unreadable. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 8, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Shanjun Li, Luis Emilio San Martin, Michael S. Bittar, Jing Li
  • Publication number: 20180306024
    Abstract: The present invention provides a methodology and system for formation boundary detection ahead and around of a drilling bit. By setting symmetrical design of receivers/transmitters around a transmitter/receiver and the direction of the receivers/transmitters, the system can measure the signals reflected by a formation boundary ahead of and around the drilling bit. The measured signals can be used to determine formation boundary positions.
    Type: Application
    Filed: September 10, 2017
    Publication date: October 25, 2018
    Inventor: Shanjun Li
  • Patent number: 9851428
    Abstract: Various embodiments include methods and apparatus structured to balance electrode pairs (112, 312) of a tool (105, 305) providing voltage equivalence between the electrode pairs. An electrically conductive wire (113, 313) coupling the electrodes of an electrode pair can be arranged such that resistance of the electrically conductive wire does not adversely affect the voltage equivalence. The electrically conductive wire can also be structured to provide temperature independent balancing by arranging the electrically conductive wire with respect to a measuring node (116, 316). Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: December 26, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Luis Emilio San Martin, Shanjun Li, Burkay Donderici, Wesley N. Ludwig
  • Patent number: 9791586
    Abstract: Various embodiments include apparatus and methods of processing and geosteering with respect to well logging. Apparatus and methods may include acquiring signals generated from operating a tool rotating in a borehole of a well, where the tool includes a receiver antenna tilted with respect to the longitudinal axis of the tool and two transmitter antennas. The acquired signals can be processed with respect to a direction in the rotation of the tool to determine properties associated with a formation and/or to determine a geosignal for geosteering a drilling operation.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: October 17, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael S. Bittar, Hsu-Hsiang Wu, Shanjun Li
  • Patent number: 9753175
    Abstract: Methods and systems for characterizing a formation are disclosed. A tool is placed in the formation. The tool comprises a perpendicular antenna set and a parallel antenna set. The perpendicular antenna set comprises at least one transmitter antenna oriented perpendicular to at least one receiver antenna and the parallel antenna set comprises at least one transmitter antenna oriented parallel to at least one receiver antenna. Data is obtained from the tool and used to determine a compensated geosignal for each of the perpendicular antenna set and the parallel antenna set. The determined compensated geosignal is used to characterize the formation.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 5, 2017
    Assignee: Haliburton Energy Services, Inc.
    Inventors: Shanjun Li, Hsu-Hsiang Wu, Michael Bittar
  • Patent number: 9684091
    Abstract: An apparatus and method for simultaneously obtaining quantitative measurements of vertical and horizontal resistivity and permittivity formation parameters by firing, using at least one transmitter in each of a horizontally and vertically polarized array on opposite sides of a drill collar, signals in the direction of a downhole formation, the fired signals from the transmitters in the arrays being fired simultaneously and engaging the downhole formation. The apparatus and method continues by receiving, using at least one receiver in each of the arrays, signals associated with the fired signals after the fired signals have engaged the downhole formation, where the received signals represent apparent formation data. The apparatus and method further involves determining, using the measured apparent formation data, the true formation data including one or more vertical and horizontal formation parameters.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 20, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Shanjun Li, Jiefu Chen
  • Patent number: 9547100
    Abstract: Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means. This novel arrangement of currents provides a complete set of measurements that enables one tool to simultaneously emulate a whole range of laterolog tools.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: January 17, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Shanjun Li, Luis E San Martin, Michael S Bittar, Jing Li
  • Patent number: 9529113
    Abstract: Various embodiments include apparatus and methods of operation with respect to well logging. Apparatus and methods include a tool having an arrangement of transmitters and receivers that are operated at different positions downhole and a processing unit to process collected signals such that the arrangement of transmitters and receivers provides measurements that mimic operation of a different arrangement of transmitters and receivers. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: December 27, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael S. Bittar, Shanjun Li, Yumei Tang
  • Publication number: 20160238733
    Abstract: An apparatus and method for simultaneously obtaining quantitative measurements of vertical and horizontal resistivity and permittivity formation parameters by firing, using at least one transmitter in each of a horizontally and vertically polarized array on opposite sides of a drill collar, signals in the direction of a downhole formation, the fired signals from the transmitters in the arrays being fired simultaneously and engaging the downhole formation. The apparatus and method continues by receiving, using at least one receiver in each of the arrays, signals associated with the fired signals after the fired signals have engaged the downhole formation, where the received signals represent apparent formation data. The apparatus and method further involves determining, using the measured apparent formation data, the true formation data including one or more vertical and horizontal formation parameters.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Inventors: Shanjun Li, Jiefu Chen
  • Patent number: 9360584
    Abstract: Various embodiments include apparatus and methods to detect and locate conductive structures below the earth's surface. Tools can be configured with receiving sensors arranged to receive signals generated from a conductive structure in response to a current flowing on the conductive structure. Magnetic-related values from the signals can be processed, relative to the tool, to determine a position of a conductive structure from which the signal was generated in response to current flowing on the conductive structure. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 7, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Shanjun Li, Michael S. Bittar, Dagang Wu
  • Patent number: 9354349
    Abstract: Various embodiments include apparatus and methods to detect and locate conductive structures below the earth's surface. Tools can be configured with receiving sensors arranged to receive signals generated from a conductive structure in response to a current flowing on the conductive structure. Magnetic-related values from the signals can be processed, relative to the tool, to determine a position of a conductive structure from which the signal was generated in response to current flowing on the conductive structure. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: May 31, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Shanjun Li, Michael S. Bittar, Dagang Wu
  • Patent number: 9341735
    Abstract: An apparatus and method for simultaneously obtaining quantitative measurements of vertical and horizontal resistivity and permittivity formation parameters by firing, using at least one transmitter in each of a horizontally and vertically polarized array on opposite sides of a drill collar, signals in the direction of a downhole formation, the fired signals from the transmitters in the arrays being fired simultaneously and engaging the downhole formation. The apparatus and method continues by receiving, using at least one receiver in each of the arrays, signals associated with the fired signals after the fired signals have engaged the downhole formation, where the received signals represent apparent formation data. The apparatus and method further involves determining, using the measured apparent formation data, the true formation data including one or more vertical and horizontal formation parameters.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 17, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Shanjun Li, Jiefu Chen
  • Publication number: 20160124106
    Abstract: An apparatus and method for simultaneously obtaining quantitative measurements of vertical and horizontal resistivity and permittivity formation parameters by firing, using at least one transmitter in each of a horizontally and vertically polarized array on opposite sides of a drill collar, signals in the direction of a downhole formation, the fired signals from the transmitters in the arrays being fired simultaneously and engaging the downhole formation. The apparatus and method continues by receiving, using at least one receiver in each of the arrays, signals associated with the fired signals after the fired signals have engaged the downhole formation, where the received signals represent apparent formation data. The apparatus and method further involves determining, using the measured apparent formation data, the true formation data including one or more vertical and horizontal formation parameters.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 5, 2016
    Inventors: Shanjun Li, Jiefu Chen