Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11828733 | Device for testing strength and sealing performance of cement sheath after perforation and using method thereof | Duo Hou, Zhongling Xiao, Zhi Zhang, Jiawei Wang, Taihe Shi | 2023-11-28 |
| 11630043 | Experimental devices for simulating erosion of tubing strings caused by sand production | Zhi Zhang, Jie Yang, You Wu, Jiawei Wang | 2023-04-18 |
| 11583822 | Intermediate gas concentration-regulating piston pressure device for high-temperature autoclave and gas distribution method | Zhi Zhang, Jinming Liu, Huali Zhang, Yufei Li, Jiawei Wang +6 more | 2023-02-21 |