Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11015109 | Particulate profile control agent self-adaptive to size of formation pore throat and preparation method thereof | Fayang Jin, Daijun Du, Wanfen Pu, Xiang Li, Ye Ju +6 more | 2021-05-25 |
| 10889745 | Plugging agent with temperature-resistant, salt-resistant and high-expansion for plugging large fractures and preparation method thereof | Fa Yang Jin, Wan Fen Pu, Wen Ge Hu, Hai Zhao, Long He +8 more | 2021-01-12 |