Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834717 | Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wells | Guancheng Jiang, Xianmin Zhang, Yinbo He, Deli Gao, Xianzhu Wu +9 more | 2017-12-05 |
| 9790417 | High-density water-based drilling fluid suitable for horizontal shale gas wells | Guancheng Jiang, Yinbo He, Fan Liu, Lili Yang, Xianmin Zhang +10 more | 2017-10-17 |
| 9783725 | Drilling fluid additive composition and water-based drilling fluid suitable for horizontal shale gas wells | Guancheng Jiang, Yinbo He, Deli Gao, Xianmin Zhang, Xianzhu Wu +6 more | 2017-10-10 |
| 9783726 | Environment-friendly water-based drilling fluid applicable to horizontal shale gas wells | Guancheng Jiang, Yinbo He, Deli Gao, Xianmin Zhang, Xianzhu Wu +6 more | 2017-10-10 |
| 9745501 | Additive composition suitable for viscosity reduction of oil-based drilling fluid, oil-based drilling fluid and use thereof | Guancheng Jiang, Shuanglei Peng, Yinbo He, Zhengqiang Deng, Lili Yang +8 more | 2017-08-29 |