Patents by Inventor Chenchen DONG

Chenchen DONG 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).

  • Pressure-preserved coring tool, use method, and reservoir analysis method
    Patent number: 12781583
    Abstract: The present invention relates to the field of drilling coring devices. Disclosed are a pressure-preserved coring tool, a use method, and a reservoir analysis method. The pressure-preserved coring tool comprises an outer cylinder (1), a differential assembly (2), a pressure-preserving inner cylinder assembly (4), and a seal assembly (5). The differential assembly is configured to be able to drive the pressure-pre-serving inner cylinder assembly to move upwards relative to the seal assembly, so that the seal assembly seals the inner cylinder assembly for accommodating a rock core (8).
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: November 3, 2026
    Assignees: CHINA NATIONAL PETROLEUM CORPORATION, CNPC GREATWALL DRILLING COMPANY
    Inventors: Yang Su, Shaoliang Sun, Ren Wang, Jun Luo, Shangwen Zhou, Mengyu Xie, Boyi Xia, Xianggang Duan, Yang Jiao, Liang Tang, Chenchen Dong, Li Wen
  • PRESSURE-PRESERVED CORING TOOL, USE METHOD, AND RESERVOIR ANALYSIS METHOD
    Publication number: 20260275823
    Abstract: The present invention relates to the field of drilling coring devices. Disclosed are a pressure-preserved coring tool, a use method, and a reservoir analysis method. The pressure-preserved coring tool comprises an outer cylinder (1), a differential assembly (2), a pressure-preserving inner cylinder assembly (4), and a seal assembly (5). The differential assembly is configured to be able to drive the pressure-pre-serving inner cylinder assembly to move upwards relative to the seal assembly, so that the seal assembly seals the inner cylinder assembly for accommodating a rock core (8).
    Type: Application
    Filed: May 13, 2026
    Publication date: September 17, 2026
    Inventors: Yang SU, Shaoliang SUN, Ren WANG, Jun LUO, Shangwen ZHOU, Mengyu XIE, Boyi XIA, Xianggang DUAN, Yang JIAO, Liang TANG, Chenchen DONG, Li WEN
  • PRESSURE-PRESERVED CORING TOOL, USE METHOD, AND RESERVOIR ANALYSIS METHOD
    Publication number: 20260078647
    Abstract: The present invention relates to the field of drilling coring devices. Disclosed are a pressure-preserved coring tool, a use method, and a reservoir analysis method. The pressure-preserved coring tool comprises an outer cylinder (1), a differential assembly (2), a pressure-preserving inner cylinder assembly (4), and a seal assembly (5). The differential assembly is configured to be able to drive the pressure-pre-serving inner cylinder assembly to move upwards relative to the seal assembly, so that the seal assembly seals the inner cylinder assembly for accommodating a rock core (8).
    Type: Application
    Filed: September 8, 2023
    Publication date: March 19, 2026
    Inventors: Yang SU, Shaoliang SUN, Ren WANG, Jun LUO, Shangwen ZHOU, Mengyu XIE, Boyi XIA, Xianggang DUAN, Yang JIAO, Liang TANG, Chenchen DONG, Li WEN