Patents by Inventor Xianmin Zhang

Xianmin Zhang 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: 20250123257
    Abstract: The present invention discloses a device and method for testing the gas loss amount which simulates a wireline coring process, and belongs to the field of petroleum engineering. The device includes: a programmable temperature control thermostat for simulating temperature changes in a wireline coring process, a simulated center pipe body for constructing a simulated environment of the center pipe body being filled with drilling fluid or clean water, a simulated coring barrel for drilling for and retaining a core sample, a gas injection control and recovery device, a liquid injection control and recovery device, and a drainage and gas collection meter.
    Type: Application
    Filed: December 14, 2024
    Publication date: April 17, 2025
    Applicants: CHINA UNIVERSITY OF PETROLEUM(EAST CHINA), NO.1 EXPLORATION BRIGADE OF SHANDONG COAL GEOLOGY BUREAU
    Inventors: Xianmin ZHANG, Qihong FENG, Zhuangzhuang ZHENG, Baiyanyue CHEN, Changlong ZHANG, Bin ZHANG
  • Publication number: 20250116586
    Abstract: The present invention discloses a device and method for testing the gas loss amount which simulates a wireline coring process, and belongs to the field of petroleum engineering. The device includes: a programmable temperature control thermostat for simulating temperature changes in a wireline coring process, a simulated center pipe body for constructing a simulated environment of the center pipe body being filled with drilling fluid or clean water, a simulated coring barrel for drilling for and retaining a core sample, a gas injection control and recovery device, a liquid injection control and recovery device, and a drainage and gas collection meter.
    Type: Application
    Filed: March 30, 2023
    Publication date: April 10, 2025
    Applicants: CHINA UNIVERSITY OF PETROLEUM(EAST CHINA), NO.1 EXPLORATION BRIGADE OF SHANDONG COAL GEOLOGY BUREAU
    Inventors: Xianmin ZHANG, Qihong FENG, Zhuangzhuang ZHENG, Baiyanyue CHEN, Changlong ZHANG, Bin ZHANG
  • Patent number: 12058202
    Abstract: The present invention discloses an OPC UA based multi-mechanical device interconnection and intercommunication realization system, which realizes horizontal integration, vertical integration, and arbitrary connectivity between devices and systems by using OPC UA technologies on the basis of multiple different mechanical devices. The software system includes a plurality of different layers, which are a device layer, a device operation layer, a data acquisition layer, a data interaction layer, a network support layer, a data storage layer, an application service layer, and a user interface layer from bottom to top, and each layer has specific functions. The present invention realizes the interconnection and intercommunication of multiple mechanical devices, can realize free communication across the firewall, and has strong reliability, user friendliness, real-time performance, scalability and security.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: August 6, 2024
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Xianmin Zhang, Dongdong Xue, Yanjiang Huang
  • Patent number: 12012832
    Abstract: The present disclosure relates to a method and system for predicting a time-varying principle of waterflooding oil reservoir formation parameters. Firstly, a T2 spectrum-pore size relation model is built according to a measured pore size distribution curve and a measured T2 spectrum. A T2 spectrum of a rock sample at different water injection amounts during a waterflooding physical simulation experiment is acquired. The acquired T2 spectrum at different water injection amounts is then converted into a pore size distribution at different water injection amounts, and a pore network model at different water injection amounts is built with the pore size distribution. Oil-water two-phase flow simulation is performed, and a corresponding oil-water two-phase relative permeability curve of the rock sample at different pore volume (PV) multiples is obtained eventually. The oil-water two-phase relative permeability curve is the formation parameters in the waterflooding oil reservoir.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: June 18, 2024
    Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Sen Wang, Kun Wang, Qihong Feng, Shunming Li, Yijing Du, Zheng Wu, Xiang Wang, Jiyuan Zhang, Xianmin Zhang
  • Publication number: 20240175340
    Abstract: The present disclosure relates to a method and system for predicting a time-varying principle of waterflooding oil reservoir formation parameters. Firstly, a T2 spectrum-pore size relation model is built according to a measured pore size distribution curve and a measured T2 spectrum. A T2 spectrum of a rock sample at different water injection amounts during a waterflooding physical simulation experiment is acquired. The acquired T2 spectrum at different water injection amounts is then converted into a pore size distribution at different water injection amounts, and a pore network model at different water injection amounts is built with the pore size distribution. Oil-water two-phase flow simulation is performed, and a corresponding oil-water two-phase relative permeability curve of the rock sample at different pore volume (PV) multiples is obtained eventually. The oil-water two-phase relative permeability curve is the formation parameters in the waterflooding oil reservoir.
    Type: Application
    Filed: July 26, 2023
    Publication date: May 30, 2024
    Inventors: Sen WANG, Kun WANG, Qihong FENG, Shunming LI, Yijing DU, Zheng WU, Xiang WANG, Jiyuan ZHANG, Xianmin ZHANG
  • Publication number: 20240159643
    Abstract: The present disclosure relates to a method for determining oil and gas relative permeabilities of a reservoir. The method includes: drilling a cylindrical core from a to-be-tested reservoir; injecting an oil and gas mixture into the cylindrical core through the piston container at a set flow rate by using the relative permeability testing device, and reducing pressures at a control end of the back pressure valve in sequence to obtain experimental values acquired under each pressure at the control end of the back pressure valve; equivalently simulating developing performance of a producing well of the to-be-tested reservoir using a one-dimensional numerical simulation grid model based on current oil and gas phase relative permeability curves, so as to obtain simulation values at different times; constructing an objective function according to the experimental and simulation values; determining whether a value of the objective function reaches a preset target value.
    Type: Application
    Filed: May 4, 2023
    Publication date: May 16, 2024
    Inventors: Jiyuan ZHANG, Kuankuan WU, Qihong FENG, Sen WANG, Xianmin ZHANG, Wendong WANG, Yong QIN, Huajun DU
  • Publication number: 20240129361
    Abstract: The present invention discloses an OPC UA based multi-mechanical device interconnection and intercommunication realization system, which realizes horizontal integration, vertical integration, and arbitrary connectivity between devices and systems by using OPC UA technologies on the basis of multiple different mechanical devices. The software system includes a plurality of different layers, which are a device layer, a device operation layer, a data acquisition layer, a data interaction layer, a network support layer, a data storage layer, an application service layer, and a user interface layer from bottom to top, and each layer has specific functions. The present invention realizes the interconnection and intercommunication of multiple mechanical devices, can realize free communication across the firewall, and has strong reliability, user friendliness, real-time performance, scalability and security.
    Type: Application
    Filed: December 30, 2022
    Publication date: April 18, 2024
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Xianmin ZHANG, Dongdong XUE, Yanjiang HUANG
  • Publication number: 20240117714
    Abstract: A method of increasing crude oil production by CO2 storage in an aquifer and dumpflooding includes the following steps. Wells are drilled in an aquifer in an oil-bearing basin for large-scale CO2 storage. A low-production and low-efficiency well in an oil-bearing stratum away from the CO2 storage injection well is selected as an artesian injection well. Formation water in the aquifer with increasing pressure is controlled and guided into the oil-bearing stratum to realize oil displacement by dumpflooding in the oil-bearing stratum.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 11, 2024
    Inventors: Xianmin ZHANG, Qihong FENG, Chen LIU, Kuankuan WU, Zangyuan WU, Yiming ZHANG, Weina LIU, Jianwei GU
  • Patent number: 11929448
    Abstract: Described herein is an electric injection annealing test device for crystalline silicon photovoltaic solar cells, the test device comprises a dark box, a sample test bench, a temperature control device, a power supply device and an image acquisition device. The sample test bench, the temperature control device, the power supply device and the image acquisition device are located in the dark box; the sample test bench is used to place a solar cell sheet; the temperature control device is used to control a temperature of the solar cell sheet; the power supply device provides a current to the solar cell sheet, the image acquisition device is used to acquire electroluminescence images of the solar cell sheet under different temperatures and current conditions.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 12, 2024
    Assignee: South China University of Technology
    Inventors: Xianmin Zhang, Linlin Cai, Shenghui Bai
  • Patent number: 11745334
    Abstract: A spatial large-stroke compliant hinge with hybrid structure, which includes a rectangular planar unit for implementing an out-of-plane torsion function and a crossed-shaped planar unit for achieving an in-plane rotation function. The crossed-shaped planar unit is formed by two flexible straight beam thin sheets intersecting into a crossed-shaped structure with an angle, and the rectangular planar unit and the crossed-shaped planar unit are connected through an external connection or an embedded connection.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: September 5, 2023
    Assignee: South China University of Technology
    Inventors: Xianmin Zhang, Hongchuan Zhang, Benliang Zhu
  • Patent number: 11649925
    Abstract: A multistable compliant mechanism is formed by connecting sequentially multiple basic units front to end to form a closed annular structure. Each basic unit includes two flexible hinges perpendicular to each other on different planes and two rigid connection parts for connecting the flexible hinges. The two flexible hinges are connected by a rigid connection part, and one of the flexible hinges is connected to a flexible hinge of an adjacent basic unit through the other rigid connection part. Lengths of two rigid connection parts in a same basic unit are equal, but lengths of rigid connection parts of different basic units are not necessarily equal. The multistable compliant mechanism features the continuous rotation and multi-steady state of a tri-compliant mechanism. The multistable compliant mechanism also features variable mechanism topology, an adjustable unit number, easy implementation, and promotion. A method for steady state analysis of the multistable compliant mechanism is also provided.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 16, 2023
    Assignee: South China University of Technology
    Inventors: Xianmin Zhang, Hongchuan Zhang, Benliang Zhu
  • Patent number: 11624273
    Abstract: The present disclosure relates to the technical field of oil-gas field development, and discloses a shale oil fracturing synchronous energizing simulation experimental device and method. The shale oil fracturing synchronous energizing simulation experimental device comprises a liquid supply system, a confining pressure loading system, a fracturing system, an energizing system and a recovery system, wherein the liquid supply system is used for storing fluid and can inject the fluid into the fracturing system; the fracturing system can bear a test piece, receive the fluid injected by the liquid supply system and serve as seepage space of the fluid; the confining pressure loading system is used for providing simulated confining pressure for the test piece; the energizing system is used for simulating an energizing effect on a test piece after fracturing liquid is injected; and the recovery system is used for collecting discharged liquid and separating and metering the discharged liquid.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: April 11, 2023
    Assignee: China University of Petroleum (East China)
    Inventors: Sen Wang, Qihong Feng, Yichun Wang, Xianmin Zhang, Jiyuan Zhang, Xian Shi
  • Patent number: 11554435
    Abstract: The present invention discloses a solder paste laser induced forward transfer device and method. The device comprises a laser, a beam shaping module, an optical path adjustment module, a solder paste transfer module and a computer control system, wherein the laser is connected to the beam shaping module, followed by the optical path adjustment module, and the solder paste transfer module is located below the optical path adjustment module. The beam shaping module comprises a beam expanding lens, an aperture, a flat-top beam shaper and a spatial light modulator. The optical path adjustment module comprises a two-dimensional galvanometer and an f-? lens. The solder paste transfer module consists of a transparent substrate, a solder paste film, a clamp, a Z-axis lifting table, a receiving substrate, and an XYZ precise moving platform. The computer control system consists of a computer and drivers of other devices.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: January 17, 2023
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Xianmin Zhang, Yilin Shan, Kai Li, Chuangang Tang
  • Publication number: 20220298902
    Abstract: The present disclosure relates to the technical field of oil-gas field development, and discloses a shale oil fracturing synchronous energizing simulation experimental device and method. The shale oil fracturing synchronous energizing simulation experimental device comprises a liquid supply system, a confining pressure loading system, a fracturing system, an energizing system and a recovery system, wherein the liquid supply system is used for storing fluid and can inject the fluid into the fracturing system; the fracturing system can bear a test piece, receive the fluid injected by the liquid supply system and serve as seepage space of the fluid; the confining pressure loading system is used for providing simulated confining pressure for the test piece; the energizing system is used for simulating an energizing effect on a test piece after fracturing liquid is injected; and the recovery system is used for collecting discharged liquid and separating and metering the discharged liquid.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 22, 2022
    Applicant: China University of Petroleum (East China)
    Inventors: Sen Wang, Qihong Feng, Yichun Wang, Xianmin Zhang, Jiyuan Zhang, Xian Shi
  • Patent number: 11159233
    Abstract: A measurement device for polarization-maintaining optical fiber spindle difference delay is provided. The measurement device comprises a polarization-maintaining fiber (PM) Sagnac interferometer, a signal generator, a microwave detector, a microprocessor. The PM Sagnac interferometer comprises a laser, a photoelectric modulator, and a PM fiber coupler that are connected in sequence. The PM Sagnac interferometer further comprises an optical fiber interface J1 and an optical fiber interface J2 arranged at the two output ends of the PM fiber coupler, a PM fiber to be measured located between the fiber interface J1 and the fiber interface J2, and a photodetector arranged at the other output end of the PM fiber coupler.
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: October 26, 2021
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Xiaofeng Jin, Donglin Qin, Chenghui Zhang, Xiangdong Jin, Xianbin Yu, Shilie Zheng, Xianmin Zhang, Bo Cong
  • Publication number: 20210226700
    Abstract: A measurement device for polarization-maintaining optical fiber spindle difference delay is provided. The measurement device comprises a polarization-maintaining fiber (PM) Sagnac interferometer, a signal generator, a microwave detector, a microprocessor. The PM Sagnac interferometer comprises a laser, a photoelectric modulator, and a PM fiber coupler that are connected in sequence. The PM Sagnac interferometer further comprises an optical fiber interface J1 and an optical fiber interface J2 arranged at the two output ends of the PM fiber coupler, a PM fiber to be measured located between the fiber interface J1 and the fiber interface J2, and a photodetector arranged at the other output end of the PM fiber coupler.
    Type: Application
    Filed: March 7, 2021
    Publication date: July 22, 2021
    Inventors: Xiaofeng JIN, Donglin Qin, Chenghui ZHANG, Xiangdong JIN, Xianbin YU, Shilie ZHENG, Xianmin ZHANG, Bo CONG
  • Publication number: 20210162586
    Abstract: The invention discloses a spatial large-stroke compliant hinge with hybrid structure, which includes a rectangular planar unit for implementing an out-of-plane torsion function and a crossed-shaped planar unit for achieving an in-plane rotation function. The crossed-shaped planar unit is formed by two flexible straight beam thin sheets intersecting into a crossed-shaped structure with an angle, and the rectangular planar unit and the crossed-shaped planar unit are connected through an external connection or an embedded connection. The invention overcomes the problems that existing planar structure compliant hinge can only be equivalent to a large-stroke low pair with single degree of freedom, and existing LEMs compliant mechanism is equivalent to compliant hinge with multiple degrees of freedom and with smaller overall strokes. It has the advantages of simple structure, easy processing, easy analysis and calculation, equivalent large stroke space, and multiple degrees of freedom flexibility.
    Type: Application
    Filed: October 10, 2019
    Publication date: June 3, 2021
    Inventors: Xianmin ZHANG, Hongchuan ZHANG, Benliang ZHU
  • Publication number: 20210119074
    Abstract: The present invention discloses an electric injection annealing test device for crystalline silicon photovoltaic solar cells, the test device comprises a dark box, a sample test bench, a temperature control device, a power supply device and an image acquisition device. The sample test bench, the temperature control device, the power supply device and the image acquisition device are located in the dark box; the sample test bench is used to place a solar cell sheet; the temperature control device is used to control a temperature of the solar cell sheet; the power supply device provides a current to the solar cell sheet, the image acquisition device is used to acquire electroluminescence images of the solar cell sheet under different temperatures and current conditions. The device can provide stable temperature and current, and obtain electroluminescence images of solar cell sheet under different temperature and current conditions.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 22, 2021
    Applicant: South China University of Technology
    Inventors: Xianmin ZHANG, Linlin CAI, Shenghui BAI
  • Patent number: 10979143
    Abstract: A frequency chirp correction method for the photonic time-stretch system comprises acquiring the stretching signal, i.e. acquiring the time-domain data after the time-domain stretching. First, the time-domain data of the stretching signal is Fourier transformed to obtain the spectral distribution. The spectral distribution is then convoluted with the first frequency-domain correction factor, and then multiplied with the second frequency-domain correction factor to obtain the modified frequency spectrum. Finally, the modified frequency spectrum is performed by the inverse Fourier transform to obtain the time-domain signal after the frequency chirp correction.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: April 13, 2021
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Changqiao Liu, Xiaofeng Jin, Xianbin Yu, Xiangdong Jin, Xianmin Zhang, Shilie Zheng, Qinggui Tan, Bo Cong
  • Publication number: 20200408359
    Abstract: A multistable compliant mechanism is formed by connecting sequentially multiple basic units front to end to form a closed annular structure. Each basic unit includes two flexible hinges perpendicular to each other on different planes and two rigid connection parts for connecting the flexible hinges. The two flexible hinges are connected by a rigid connection part, and one of the flexible hinges is connected to a flexible hinge of an adjacent basic unit through the other rigid connection part. Lengths of two rigid connection parts in a same basic unit are equal, but lengths of rigid connection parts of different basic units are not necessarily equal. The multistable compliant mechanism features the continuous rotation and multi-steady state of a tri-compliant mechanism. The multistable compliant mechanism also features variable mechanism topology, an adjustable unit number, easy implementation, and promotion. A method for steady state analysis of the multistable compliant mechanism is also provided.
    Type: Application
    Filed: October 22, 2018
    Publication date: December 31, 2020
    Inventors: Xianmin Zhang, Hongchuan Zhang, Benliang Zhu