Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161811 | Process for preparing Mannich base quaternary ammonium salt high-temperature resistant corrosion inhibitor and applications thereof | Dingli Wang, Yongming Li, Xiyu Chen, Juhui Zhu | 2021-11-02 |
| 11125068 | Channel fracturing method with alternative injection of conventional and capsule-type soluble proppants | Yan Kou, Yongming Li, Zhibin He, Jing-Syuan Jia, Wang Tang +2 more | 2021-09-21 |
| 10921228 | Testing device and method for floating rate of floating agent for fracture height control | Fujian Liu, Yongming Li, Bo Chen, Jinzhou Zhao | 2021-02-16 |
| 10889748 | Process for preparing dibenzylamine quaternary ammonium salt high-temperature resistant corrosion inhibitor and applications thereof | Yongming Li, Dingli Wang, Xiyu Chen, Juhui Zhu | 2021-01-12 |