Issued Patents All Time
Showing 1–13 of 13 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, Meichun Li +3 more | 2025-08-12 |
| 12378458 | Phase change microcapsule for drilling fluid cooling and its preparation method and application | Mei Li, Ziyan Li, Jinsheng Sun, Kaihe Lv, Jingping Liu +4 more | 2025-08-05 |
| 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, Meichun Li, 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, Meichun Li +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 |
| 12043742 | Oil-soluble thermosensitive resin lost circulation material for protecting a reservoir as well as preparation method and application thereof | Yingrui Bai, Jinsheng Sun, Kaihe Lv, Guancheng Jiang, Rongchao Cheng +6 more | 2024-07-23 |
| 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, Meichun Li, Jintang Wang +4 more | 2024-04-30 |
| 11807802 | Nano-organosilicon film-forming and hydrophobic shale surface hydration inhibitor and its preparation method and application | Xianbin Huang, Jinsheng Sun, He Li, Kaihe Lv, Jingping Liu +2 more | 2023-11-07 |
| 11578250 | Cementitious plugging wall solidifer for water-based drilling fluid, and a preparation method thereof and a water-based drilling fluid | Jingping Liu, Jinsheng Sun, Kaihe Lv, Jintang Wang, Yingrui Bai +3 more | 2023-02-14 |
| 11472999 | Water-based gel-consolidation type lost circulation material system suitable for fractured lost circulation formation, preparation method and use thereof | Yingrui Bai, Jinsheng Sun, Kaihe Lv, Jingping Liu, Xianbin Huang +1 more | 2022-10-18 |
| 11421140 | High-temperature resistant, high-strength, and thixotropic gel plugging agent and its preparation method and application | Yingrui Bai, Jinsheng Sun, Kaihe Lv, Ren Wang, Jingping Liu +2 more | 2022-08-23 |
| 11384275 | High temperature-resistant and high oil-absorption resin particle plugging agent suitable for oil-based drilling fluid and its preparation method | Yingrui Bai, Jinsheng Sun, Kaihe Lv, Xianbin Huang, Xiaosen Shang +2 more | 2022-07-12 |
| 11072738 | Environment-friendly high-temperature resistant water-based drilling fluid plugging anti-sloughing agent, preparation method thereof and the water-based drilling fluid | Xianbin Huang, Jinsheng Sun, Kaihe Lv, Jingping Liu, Yingrui Bai +1 more | 2021-07-27 |