Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10000684 | Drilling fluid additive composition, and oil-based drilling fluid and use thereof | Guancheng Jiang, Shuanglei Peng, Yinbo He, Deli Gao, Lili Yang +6 more | 2018-06-19 |
| 9890318 | Drilling fluid additive composition and water-based drilling fluid suitable for high-pressure plugging | Guancheng Jiang, Chong Liu, Yinbo He, Qingying Ge, Lili Yang +10 more | 2018-02-13 |