Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9790415 | Modified silicon dioxide nano-particles and preparation method thereof, and drilling fluid suitable for shale gas wells | Guancheng Jiang, Yinbo He, Qingying Ge, Lili Yang, Fan Liu +7 more | 2017-10-17 |
| 9353305 | Reservoir protecting agent composition, drilling fluid for middle permeability reservoirs and use thereof | Guancheng Jiang, Yang Xuan, Xi Wang | 2016-05-31 |
| 9296936 | Preparation method of a wettability reversal agent | Guancheng Jiang, Yang Xuan, Xi Wang, Shuo Zhang, Jinsheng Sun | 2016-03-29 |
| 9279076 | Reservoir protecting agent composition and broad-spectrum drilling liquid and use thereof | Guancheng Jiang, Yang Xuan, Xi Wang, Shuo Zhang, Jinsheng Sun | 2016-03-08 |
| 9267068 | Protecting agent composition for high/ultra-high permeability reservoirs and drilling fluid and use thereof | Guancheng Jiang, Yang Xuan, Xi Wang, Shuo Zhang, Jinsheng Sun | 2016-02-23 |