Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11453814 | Pressure-bearing plugging agent and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Haibo Liang, Wen Xu +4 more | 2022-09-27 |
| 11396621 | Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Jinsheng Sun, Haibo Liang +4 more | 2022-07-26 |
| 11345841 | Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Wenzhe Li, Feng-Wei Dai +3 more | 2022-05-31 |
| 10487255 | Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof | Yang Bai, Pingya Luo, Jinsheng Sun, Guancheng Jiang, Yan Cheng +1 more | 2019-11-26 |
| 10336932 | Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof | Yang Bai, Pingya Luo, Jinsheng Sun, Guancheng Jiang, Yan Cheng +1 more | 2019-07-02 |
| 10233377 | Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method | Yang Bai, Pingya Luo | 2019-03-19 |