Issued Patents All Time
Showing 1–25 of 34 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 | Jingping Liu, 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, Kaihe Lv, Jingping Liu, 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 | Jingping Liu, 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, Kaihe Lv, Jingping Liu, Meichun Li, Yingrui Bai +4 more | 2025-04-01 |
| 12215274 | Resin slurry plugging system suitable for fractured-vuggy formation and preparation and use thereof | Yingrui Bai, Jingbin Yang, Yang Bai, Ren Wang, Kaihe Lv +3 more | 2025-02-04 |
| 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, Kaihe Lv, Guancheng Jiang, Rongchao Cheng, Weian Huang +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, Kaihe Lv, Meichun Li, Jintang Wang, Jiafeng Jin +4 more | 2024-04-30 |
| 11873444 | Nanographene and preparation method and use thereof and oil-based drilling fluid | Yang Bai, Daoxiong Li, Ren Wang, Gang Xie, Danchao Huang +4 more | 2024-01-16 |
| 11807802 | Nano-organosilicon film-forming and hydrophobic shale surface hydration inhibitor and its preparation method and application | Xianbin Huang, He Li, Kaihe Lv, Jingping Liu, Jiafeng Jin +2 more | 2023-11-07 |
| 11787990 | Bionic and dual-phobic high-performance water-based drilling fluid | Guancheng Jiang, Yinbo He, Xin Zhang, Chunyao Peng, Tengfei Dong +17 more | 2023-10-17 |
| 11639460 | Nanometer self-locking bentonite film-forming agent, method for preparing the same, and film-forming drilling fluid | Wenxin Dong, Xiaolin Pu, Jinyang Fan, Wenhao Liu, Siyi Chen +8 more | 2023-05-02 |
| 11578250 | Cementitious plugging wall solidifer for water-based drilling fluid, and a preparation method thereof and a water-based drilling fluid | Jingping Liu, Kaihe Lv, Jintang Wang, Jiafeng Jin, 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, Kaihe Lv, Jingping Liu, 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, Kaihe Lv, Ren Wang, Jingping Liu, Xianbin Huang +2 more | 2022-08-23 |
| 11396621 | Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Haibo Liang, Wen Xu +4 more | 2022-07-26 |
| 11384275 | High temperature-resistant and high oil-absorption resin particle plugging agent suitable for oil-based drilling fluid and its preparation method | Yingrui Bai, Kaihe Lv, Xianbin Huang, Xiaosen Shang, Jiafeng Jin +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, Kaihe Lv, Jingping Liu, Yingrui Bai, Jintang Wang +1 more | 2021-07-27 |
| 11053424 | Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof | Yuping Yang, Jingping Liu, Min Chang, Long Li, Jinhong Wang +1 more | 2021-07-06 |
| 10865337 | Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof | Yang Bai, Pingya Luo, Yan Cheng, Guancheng Jiang | 2020-12-15 |
| 10858571 | High-temperature retarder suitable for oil and gas well cementation, preparation method thereof and cementing slurry | Chengwen Wang, Yucheng Xue, Wei Zhou, Ruihe Wang, Yong Li +1 more | 2020-12-08 |
| 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 |
| 10487255 | Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof | Yang Bai, Pingya Luo, Guancheng Jiang, Jiading Deng, Yan Cheng +1 more | 2019-11-26 |
| 10392552 | Water-based drilling fluid for protecting fractured reservoirs, and preparation method and use thereof | Kaihe Lv, Jingping Liu | 2019-08-27 |
| 10336932 | Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof | Yang Bai, Pingya Luo, Guancheng Jiang, Jiading Deng, Yan Cheng +1 more | 2019-07-02 |