Patents by Inventor Duoli ZHANG

Duoli 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).

  • Patent number: 12104460
    Abstract: The application provides a full-bore infinite-level staged fracturing sliding sleeve based on a smart label, which includes a fracturing sliding sleeve and a smart label for opening the fracturing sliding sleeve. The fracturing sliding sleeve is placed into a wellbore with a casing and cementing is performed. Each fracturing sliding sleeve corresponds to a target fracturing stage in the well. The smart label is placed into the casing through a wellhead, and is pumped forwards in the wellbore; the smart label automatically identifies the target fracturing stage, and is clamped and seated in the fracturing sliding sleeve of the target fracturing stage, thus realizes the opening of the fracturing sliding sleeve with the pressure from a pump truck. The opening of the fracturing sliding sleeve of each stage corresponds to a smart label. After all the stages are fractured, the smart labels are completely dissolved in the fracturing fluid.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: October 1, 2024
    Inventors: Wenping Song, Duoli Zhang, Jun Yang, Fenglong Li, Huapeng Wang
  • Patent number: 11988068
    Abstract: The invention relates to the technical field of oil and gas field development, in particular to a staged multi-cluster fracturing sliding sleeve system and method based on smart key label. The system includes at least one multi-cluster sliding correspondingly placed in each fracturing stage, an end sliding sleeve, and a smart key label. The method includes: step S1, performing fracturing stage by stage from a first stage to a last stage, placing the smart key label through a wellhead and pumping the smart key label to the target fracturing stage; step S2, opening the multi-cluster sliding sleeves of the current fracturing stage one by one through the smart key label, and finally blocking the smart key label in the end sliding sleeve when the multi-cluster sliding sleeve and the end sliding sleeve of the current fracturing stage are opened; and step S3, repeating the steps S1 and S2 until the fracturing operations of all the stages are completed.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: May 21, 2024
    Inventors: Wenping Song, Jiuzheng Yu, Qiao Sun, Duoli Zhang, Tao Ma, Jiaqing Zhang, Hao Yu, Pengyu Li, Wei Liu
  • Patent number: 11379554
    Abstract: The present application discloses a verification system and method for an operation result based on a reconfigurable butterfly unit. The system is applicable to a digital signal processing (DSP) chip. The DSP chip includes a reconfigurable butterfly unit. The reconfigurable butterfly unit may be reconfigured into two modes: a first verification mode and a second verification mode. The system includes: a controller, a memory, a verification unit, a first data gating unit, and a second data gating unit. The technical solution in the present application is used to overcome the disadvantage that an existing verification system and an existing verification method consume large hardware resources, thereby reducing the implementation costs of operation result verification.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: July 5, 2022
    Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
    Inventors: Yukun Song, Zhengmao Wang, Duoli Zhang, Xu Tang, Zhenmin Li, Gaoming Du
  • Patent number: 11194887
    Abstract: The application discloses a data processing device, a data processing method and a digital signal processing device. The data processing device is used to reduce computing amount by reading and writing operation of memory. The data processing device comprises: a module for calculating reduced coefficient matrices, a storage module, a module for modifying reduced coefficient matrices, a module for triangular inversing, a module for obtaining inversion matrices and a module for correcting reverse result.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 7, 2021
    Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
    Inventors: Duoli Zhang, Ziyan Ye, Qi Sun, Yukun Song, Gaoming Du
  • Publication number: 20210334333
    Abstract: The present application discloses a verification system and method for an operation result based on a reconfigurable butterfly unit. The system is applicable to a digital signal processing (DSP) chip. The DSP chip includes a reconfigurable butterfly unit. The reconfigurable butterfly unit may be reconfigured into two modes: a first verification mode and a second verification mode. The system includes: a controller, a memory, a verification unit, a first data gating unit, and a second data gating unit. The technical solution in the present application is used to overcome the disadvantage that an existing verification system and an existing verification method consume large hardware resources, thereby reducing the implementation costs of operation result verification.
    Type: Application
    Filed: February 10, 2021
    Publication date: October 28, 2021
    Applicant: HeFei University of Technology
    Inventors: Yukun Song, Zhengmao Wang, Duoli Zhang, Xu Tang, Zhenmin Li, Gaoming Du
  • Publication number: 20200012704
    Abstract: The application discloses a data processing device, a data processing method and a digital signal processing device. The data processing device is used to reduce computing amount by reading and writing operation of memory. The data processing device comprises: a module for calculating reduced coefficient matrices, a storage module, a module for modifying reduced coefficient matrices, a module for triangular inversing, a module for obtaining inversion matrices and a module for correcting reverse result.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 9, 2020
    Applicant: HeFei University of Technology
    Inventors: Duoli Zhang, Ziyan Ye, Qi Sun, Yukun Song, Gaoming Du
  • Patent number: 10277246
    Abstract: The present invention provides a program counter compression method and a hardware circuit thereof. The compression method of the present invention includes the following steps: step (1), acquiring execution condition of instructions sent by a processor and classifying and screening said instructions based on said execution condition of the instructions; step (2), executing differential operation on instruction count values of the objective classification and the stall periods based on the classifying and screening result and splicing the obtained differential values; step (3), dictionary encoding the valid differential slicing data segments recorded in step (2). The present invention effectively combines the architecture compression and non-architecture compression and proposes a three-stage compression scheme by organizing and applying classifying and screening, differential encoding and dictionary compression, which drastically increases the compression ratio of the program counter.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 30, 2019
    Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
    Inventors: Duoli Zhang, Bin Zhang, Yukun Song, Can Wei
  • Publication number: 20190089370
    Abstract: The present invention provides a program counter compression method and a hardware circuit thereof. The compression method of the present invention includes the following steps: step (1), acquiring execution condition of instructions sent by a processor and classifying and screening said instructions based on said execution condition of the instructions; step (2), executing differential operation on instruction count values of the objective classification and the stall periods based on the classifying and screening result and splicing the obtained differential values; step (3), dictionary encoding the valid differential slicing data segments recorded in step (2). The present invention effectively combines the architecture compression and non-architecture compression and proposes a three-stage compression scheme by organizing and applying classifying and screening, differential encoding and dictionary compression, which drastically increases the compression ratio of the program counter.
    Type: Application
    Filed: February 17, 2017
    Publication date: March 21, 2019
    Applicant: HeFei University of Technology
    Inventors: Duoli ZHANG, Bin ZHANG, Yukun SONG, Can WEI