Issued Patents All Time
Showing 26–34 of 34 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, Xi Wang, Xiaolin Pu +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 |
| 10040984 | Water-based drilling fluid for protecting high-permeability reservoirs, and preparation method and use thereof | Kaihe Lv, Jingping Liu | 2018-08-07 |
| 9771509 | Polymer elastic particle reservoir protecting agent and drilling fluid containing the same | Kaihe Lv, Jingping Liu | 2017-09-26 |
| 9701884 | Nanometer film structured reservoir protecting agent, drilling fluid containing the same and use thereof in low-permeability reservoirs | Kaihe Lv, Jingping Liu | 2017-07-11 |
| 9683160 | Composition comprising a nanometer film structured reservoir protecting agent and a water block preventing agent, and drilling fluid containing the same and use thereof for drilling in low-permeability reservoirs | Jingping Liu, Kaihe Lv | 2017-06-20 |
| 9296936 | Preparation method of a wettability reversal agent | Guancheng Jiang, Yang Xuan, Xi Wang, Shuo Zhang, Yuxiu An | 2016-03-29 |
| 9279076 | Reservoir protecting agent composition and broad-spectrum drilling liquid and use thereof | Guancheng Jiang, Yang Xuan, Xi Wang, Shuo Zhang, Yuxiu An | 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, Yuxiu An | 2016-02-23 |