Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12276166 | Device for preventing abrupt blockage in blooie line of gas drilling | Hongtao Li, Yingfeng Meng, Yijian Chen | 2025-04-15 |
| 12146374 | Active intelligent wellbore pressure control system | Hongtao Li, Jun Jiang, Wenhe Xia, Xu Yang | 2024-11-19 |
| 12116888 | Impact simulation device and simulation method for characteristics of rock chip beds in large displacement wells | Dong Xiao, Hongyu Xiao, Mingjie LIU, Pan Fang, Yachuan Liu | 2024-10-15 |
| 12024961 | Remote intelligent active drilling pressure control system and method | Hongtao Li, Yijian Chen, Dong Xiao, Jun Jiang, Wenhe Xia +1 more | 2024-07-02 |
| 11988055 | Controllable downhole drilling and completion tool separating device and their method of use | Pan Fang, Dong Xiao, Hongtao Li, Xu Yang, Yongjie Li +2 more | 2024-05-21 |
| 11713674 | Pressure pulse communication system and method during gas drilling | Xingyu Chen, Yingfeng Meng, Yijian Chen, Hongtao Li, Lunping Zhang +1 more | 2023-08-01 |
| 11371962 | Multi-frequency acoustic velocity measurement device for core | Yijian Chen, Xingyu Chen, Lunping Zhang, Chaofan Tu, Yunsheng Chen +1 more | 2022-06-28 |
| 11162323 | Multi-slug staged method for plugging fractured formation | Long He, Zujun Jiang, Rui Li, Yi Feng | 2021-11-02 |
| 11054351 | Strain and acoustic wave testing device and method for high-temperature rock sample | Ze Chen, Yijian Chen, Xin Yu, Dong Liu, Yi Zhang | 2021-07-06 |
| 10794180 | Mineshaft-stratum fracture coupled flowing simulation experiment device and method | Yi Feng, Shunhui Yang, Yijian Chen, Na Wei, Yingfeng Meng +1 more | 2020-10-06 |
| 10415374 | Logging-while-drilling optical fiber communication device | Xingyu Chen, Yingfeng Meng, Yijian Chen, Yang Wang, Lunping Zhang | 2019-09-17 |
| 9850716 | Remote-controlled adjustable-speed screw drill for gas-drive hydraulic-motive during gas drilling | Tiejun Lin, Ying Zhang, Zhanghua Lian, Qiang Zhang, Yong He +2 more | 2017-12-26 |