Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12203365 | Method for evaluating rock drillability by nano-indentation test on rock cutting | Zizhen Wang, Xianbo Lei, Weidong Zhou, Chengwen Wang, Xian Shi +3 more | 2025-01-21 |
| 10858571 | High-temperature retarder suitable for oil and gas well cementation, preparation method thereof and cementing slurry | Chengwen Wang, Yucheng Xue, Wei Zhou, Jinsheng Sun, Yong Li +1 more | 2020-12-08 |
| 10655048 | Oil well cement settlement stabilizer for high-temperature cementing of oil and gas wells and preparation method thereof, and cement slurry | Chengwen Wang, Huan Wang, Zizhen Wang, Yucheng Xue, Xin Chen +1 more | 2020-05-19 |
| 9624420 | Foam stabilizer composition, foamed cement slurry and additive composition thereof | Chengwen Wang, Baojiang Sun, Weidong Zhou | 2017-04-18 |