Issued Patents All Time
Showing 1–25 of 36 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, Kaihe Lv, Fengbao Liu, Meichun Li, Jiafeng Jin +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, Yingrui Bai +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, Kaihe Lv, Meichun Li, 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, Meichun Li, 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 |
| 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 | Jinsheng Sun, Kaihe Lv, Meichun Li, Jintang Wang, Jiafeng Jin +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, Jiafeng Jin +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 | Jinsheng Sun, Kaihe Lv, Jintang Wang, Jiafeng Jin, Yingrui Bai +3 more | 2023-02-14 |
| 11542425 | Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof | Yang Bai, Lingfeng Wu, Jing Zhang, Wenzhe Li, Pingya Luo +4 more | 2023-01-03 |
| 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, Xianbin Huang, Jintang Wang +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, Xianbin Huang +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 |
| 11350646 | Chewing gums with cross-linked hydrocolloids and coupling agents | — | 2022-06-07 |
| 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, Yingrui Bai, Jintang Wang +1 more | 2021-07-27 |
| 11060009 | Filtrate reducer for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof | Yuping Yang, Ying Wang, Long Li, Yan Zhang, Yushuang Liu +3 more | 2021-07-13 |
| 11053424 | Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof | Yuping Yang, Min Chang, Long Li, Jinhong Wang, Yan Zhang +1 more | 2021-07-06 |
| 11034876 | Calcium-resistant zwitterionic polymer, preparation method and application thereof, and water-based drilling fluid containing polymer as dispersant | Yinbo He, Guancheng Jiang, Tengfei Dong, Lili Yang, Wuquan Li +6 more | 2021-06-15 |
| 10876034 | Modified silicon dioxide material of fluorocarbon active agent type super-amphiphobic cutting-carrying agent suitable for water-based drilling fluid and preparation method thereof | Guancheng Jiang, Xiaoxiao Ni, Yinbo He, Lili Yang, Tengfei Dong +7 more | 2020-12-29 |
| 10745605 | Plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof | Yuping Yang, Long Li, Dongyang Li, Wei Zhang, Lei Guo +1 more | 2020-08-18 |
| 10533122 | Strong plugging drilling fluid composition and preparation method thereof, and use thereof | Yang Bai, Cheng Li, Guojun Li, Yan Cheng, Hao Zhang +2 more | 2020-01-14 |
| 10392552 | Water-based drilling fluid for protecting fractured reservoirs, and preparation method and use thereof | Jinsheng Sun, Kaihe Lv | 2019-08-27 |
| 10040984 | Water-based drilling fluid for protecting high-permeability reservoirs, and preparation method and use thereof | Kaihe Lv, Jinsheng Sun | 2018-08-07 |
| 9980502 | Chewing gum containing a cross-linked gelatin matrix gum base | Xiaoqun Mo, Minmin Tian, Julie Hassler, Michael J. Greenberg | 2018-05-29 |
| 9974320 | Chewing gum base containing substituted polysaccharides and chewing gum products made there from | Xiaoqun Mo, Kaichang Li | 2018-05-22 |