Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12384953 | Strongly adsorbed hyper-branched filtrate reducer for water-based drilling fluid with resistance to 240° C. and saturated salinity, preparation method therefor and use thereof | Jinsheng Sun, Jingping Liu, Kaihe Lv, Fengbao Liu, Jiafeng Jin +3 more | 2025-08-12 |
| 12269985 | High density environmentally friendly polymer water-based drilling fluid with resistance to 240° C. and saturated salts, preparation method therefor and use thereof | Jinsheng Sun, Jingping Liu, Kaihe Lv, Jiafeng Jin, Jintang Wang +2 more | 2025-04-08 |
| 12264279 | High-temperature and high-salt resistant hyperbranched lubricant for water-based drilling fluid, and preparation and application thereof | Jian Li, Jinsheng Sun, Kaihe Lv, Jingping Liu, Yingrui Bai +4 more | 2025-04-01 |
| 12110449 | Bio-enzyme degradable temporary plugging material and preparation method and application thereof | Jintang Wang, Bo Liao, Xiaohui Sun, Jiaqi Xu, Yingrui Bai +7 more | 2024-10-08 |
| 11970655 | High temperature and high salinity-resistant complementarily rigid-flexible plugging agent and method for preparing the same and water-based drilling fluid and use thereof | Jingping Liu, Jinsheng Sun, Kaihe Lv, Jintang Wang, Jiafeng Jin +4 more | 2024-04-30 |
| 11028307 | Modified cellulose nanocrystals and their use in drilling fluids | Qinglin Wu | 2021-06-08 |