Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10718176 | Drilling speed improvement device capable of producing both hydraulic pulse and impact vibration | Hualin Liao, Jilei NIU, Zhichuan Guan, Yucai Shi, Yongwang Liu +1 more | 2020-07-21 |
| 10697277 | Simulation device and method for integrated evaluation experiment for sand control wellbore plugging and plugging removal | Hualin Liao, Lin Dong, Jilei NIU, Changyin Dong, Wenhao Ma +3 more | 2020-06-30 |