Issued Patents 2019
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487255 | Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof | Yang Bai, Pingya Luo, Jinsheng Sun, Jiading Deng, Yan Cheng +1 more | 2019-11-26 |
| 10442973 | Super-amphiphobic strongly self-cleaning high-performance water-based drilling fluid and drilling method | Xiaoxiao Ni, Lili Yang, Yinbo He, Xiaohu Quan, Zhong Li +9 more | 2019-10-15 |
| 10336931 | Use of dual-cation fluorocarbon surfactant as amphiphobic wettability reversal agent in drilling fluid | Deli Gao, Guangchang Ma, Jinsheng Sun, Xi Wang, Xiaolin Pu +8 more | 2019-07-02 |
| 10336932 | Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof | Yang Bai, Pingya Luo, Jinsheng Sun, Jiading Deng, Yan Cheng +1 more | 2019-07-02 |
| 10308857 | Super-amphiphobic composite material and use of the same as inhibitor, lubricant, reservoir protectant, and accelerator in water-based drilling fluids | Xiaoxiao Ni, Lili Yang, Guangchang Ma, Chunyao Peng, Deli Gao +8 more | 2019-06-04 |
| 10266744 | Accelerator used for drilling fluids, water-based drilling fluid and usage thereof | Deli Gao, Shuo Zhang, Yong Wang, Xianzhu Wu, Liexiang Han +9 more | 2019-04-23 |
| 10253237 | Film former used for coal-bed gas well drilling and preparation method thereof, drilling fluid and usage thereof | Deli Gao, Shuo Zhang, Yong Wang, Xianzhu Wu, Liexiang Han +9 more | 2019-04-09 |