Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11313192 | Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof | Xianwen Li, Qiaorong Han, Yanming Zhang, Xu Ma, Zhanguo Ma +25 more | 2022-04-26 |
| 10711428 | Supporting device and method for calculating jacking force thereof | Chuntian Li, Biao Liao, Weizheng Kong, Xinyu Shao, Siyuan Zhao +1 more | 2020-07-14 |