Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11512542 | Intelligent throttled well-killing method and device for overflow in high-temperature and high-pressure deep drilling | Qian Li, Menghan Si | 2022-11-29 |
| 11236562 | Safety drilling system and method for preventing collapse of water-sensitive formation in upper part of high-pressure saltwater layer | Qian Li, Xiaolin Zhang, Wenfeng Yin, Jiajia Gao | 2022-02-01 |