Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11542425 | Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof | Yang Bai, Lingfeng Wu, Jing Zhang, Wenzhe Li, Feng-Wei Dai +4 more | 2023-01-03 |
| 11525079 | Preparation method of fully adaptive modified nanographene plugging type anti-collapse drilling fluid and use thereof | Yang Bai, Dezhi Liu, Jing Zhang, Gang Xie, Feng-Wei Dai +1 more | 2022-12-13 |
| 11485896 | Oil-based drilling fluid composition, oil-based drilling fluid and preparation method and use thereof | Yang Bai, Daoxiong Li, Wen Xu, Wenzhe Li, Lingfeng Wu +3 more | 2022-11-01 |
| 11453814 | Pressure-bearing plugging agent and preparation method and use thereof | Yang Bai, Lingfeng Wu, Haibo Liang, Wen Xu, Wenzhe Li +4 more | 2022-09-27 |
| 11441062 | Modified polyvinyl acetate and preparation method and use thereof and oil-based drilling fluid | Yang Bai, Chunyan Liu, Gang Xie, Danchao Huang, Dezhi Liu +3 more | 2022-09-13 |
| 11396621 | Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof | Yang Bai, Lingfeng Wu, Jinsheng Sun, Haibo Liang, Wen Xu +4 more | 2022-07-26 |
| 11345841 | Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof | Yang Bai, Lingfeng Wu, Wenzhe Li, Feng-Wei Dai, Gang Xie +3 more | 2022-05-31 |
| 11225594 | Drilling fluid for enhancing stratum pressure bearing capacity and preparation method and method of using thereof | Yang Bai, Hao Zhang, Cheng Li, Yan Cheng, Guojun Li +2 more | 2022-01-18 |
| 11162010 | Nanometer plugging water-based drilling fluid and preparation method and use thereof | Yang Bai, Guojun Li, Cheng Li, Hao Zhang, Yan Cheng | 2021-11-02 |
| 10989576 | Method and system for obtaining micro-nano level fracture model and evaluating plugging performance of drilling fluid | Yang Bai, Yan Cheng, Hongbo Li, Cheng Li, Hao Zhang +3 more | 2021-04-27 |
| 10928300 | Experimental device and experimental method for testing the lubricity in horizontal well drilling with a cuttings bed taken into consideration | Junlin SU, Jinjun Huang, Fang Li | 2021-02-23 |
| 10865337 | Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof | Yang Bai, Yan Cheng, Jinsheng Sun, Guancheng Jiang | 2020-12-15 |
| 10829679 | Micro-nanometer plugging anti-collapse drilling fluid and preparation method and use thereof | Yang Bai, Cheng Li, Yan Cheng, Guojun Li, Hao Zhang | 2020-11-10 |
| 10829681 | Modified nano-silica plugging agent, water-based drilling fluid, and preparation method and use thereof | Yang Bai, Yan Cheng, Cheng Li, Hao Zhang, Guojun Li | 2020-11-10 |
| 10487255 | Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof | Yang Bai, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng +1 more | 2019-11-26 |
| 10407608 | Strong plugging drilling fluid suitable for shale gas wells and preparation method thereof | Yang Bai | 2019-09-10 |
| 10336932 | Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof | Yang Bai, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng +1 more | 2019-07-02 |
| 10233375 | Drilling fluid for inhibiting surface hydration of clay and preparation method thereof | Yang Bai, Gang Xie | 2019-03-19 |
| 10233377 | Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method | Yang Bai, Jiading Deng | 2019-03-19 |
| 10017679 | Plugging agent for improving formation bearing capacity and preparation method thereof | Dachuan Liang, Pingquan Wang, Mingyi Deng, Jinjun Huang, Yang Bai | 2018-07-10 |
| 10005946 | High-temperature cross-linking deep-well drilling fluid and preparation method thereof | Yang Bai, Ling-Chieh Lin, Dachuan Liang | 2018-06-26 |
| 9926482 | Deep-well polysulfonate drilling fluid and preparation method thereof | Yang Bai, Ling-Chieh Lin, Dachuan Liang | 2018-03-27 |