Issued Patents 2016
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |