Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487255 | Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof | Yang Bai, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng +1 more | 2019-11-26 |
| 10407608 | Strong plugging drilling fluid suitable for shale gas wells and preparation method thereof | Yang Bai | 2019-09-10 |
| 10336932 | Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof | Yang Bai, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng +1 more | 2019-07-02 |
| 10233375 | Drilling fluid for inhibiting surface hydration of clay and preparation method thereof | Yang Bai, Gang Xie | 2019-03-19 |
| 10233377 | Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method | Yang Bai, Jiading Deng | 2019-03-19 |