Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11733121 | Sealing integrity evaluation device for high-temperature and high- pressure casing-cement ring-formation and method thereof | Zhi Zhang, Duo Hou, Huali Zhang, Yufei Li, Lin Zhang +4 more | 2023-08-22 |
| 11630043 | Experimental devices for simulating erosion of tubing strings caused by sand production | Zhi Zhang, Jie Yang, Jian Dong Ding, Jiawei Wang | 2023-04-18 |