Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10336931 | Use of dual-cation fluorocarbon surfactant as amphiphobic wettability reversal agent in drilling fluid | Guancheng Jiang, Deli Gao, Guangchang Ma, Jinsheng Sun, Xi Wang +8 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 | Guancheng Jiang, Xiaoxiao Ni, Lili Yang, Guangchang Ma, Chunyao Peng +8 more | 2019-06-04 |
| 10287475 | Shale inhibitor and preparation method thereof, water-based drilling fluid, and shale gas drilling and extraction method | Hao Wang | 2019-05-14 |