Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11525079 | Preparation method of fully adaptive modified nanographene plugging type anti-collapse drilling fluid and use thereof | Yang Bai, Jing Zhang, Pingya Luo, Gang Xie, Feng-Wei Dai +1 more | 2022-12-13 |
| 11485896 | Oil-based drilling fluid composition, oil-based drilling fluid and preparation method and use thereof | Yang Bai, Daoxiong Li, Pingya Luo, Wen Xu, Wenzhe Li +3 more | 2022-11-01 |
| 11441062 | Modified polyvinyl acetate and preparation method and use thereof and oil-based drilling fluid | Yang Bai, Chunyan Liu, Pingya Luo, Gang Xie, Danchao Huang +3 more | 2022-09-13 |