Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11002128 | Gravity acceleration measurement apparatus and extraction method in a rotating state | Wenxiu Zhang, Wenxuan Chen, Qingyun Di, Jianguang Liu, Yuntao Sun +1 more | 2021-05-11 |
| 10851647 | Downhole vibration and impact data recording method | Zhongxing Wang, Qingyun Di, Zili Wang, Wenxuan Chen, Tianxin Zhang +2 more | 2020-12-01 |
| 10837235 | Hybrid rotary guiding device | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du +3 more | 2020-11-17 |
| 10830037 | Constant amplitude adjusting method and system for pressure pulse of drilling tool | Jiansheng Du, Qingyun Di, Zili Wang, Wenxuan Chen, Xinzhen He | 2020-11-10 |
| 10815730 | Anti-rotating device of non-rotating sleeve and a rotary guiding device | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du +3 more | 2020-10-27 |
| 10746756 | Dynamic testing device suitable for drilling tool attitude measurement module | Wenxiu Zhang, Jian Zheng, Yuntao Sun, Qingyun Di, Wenxuan Chen +1 more | 2020-08-18 |
| 10746894 | Magnetotelluric measurement system | Zhongxing Wang, Qingyun Di, Tianxin Zhang, Fei Tian, Wenxiu Zhang +1 more | 2020-08-18 |
| 10662764 | Near-bit constant-power wireless short-distance transmission method and apparatus | Yuntao Sun, Wenxuan Chen, Wenxiu Zhang, Jian Zheng | 2020-05-26 |
| 10619478 | Device for power transmission and signal transfer between stator and rotor of screw drilling tool | Xinzhen He, Qingyun Di, Wenxuan Chen, Jiansheng Du, Qingbo Liu | 2020-04-14 |
| 10612372 | Azimuthal acoustic logging while drilling apparatus and measurement method | Wenxiu Zhang, Qingyun Di, Wenxuan Chen, Jian Zheng, Yuntao Sun | 2020-04-07 |
| 10578754 | Sinusoidal excitation method and apparatus for multi-pole acoustic logging while drilling | Yuntao Sun, Zili Wang, Wenxuan Chen, Wenxiu Zhang, Qingyun Di +1 more | 2020-03-03 |
| 10488544 | Method, apparatus and system for arranging survey points in field operation with ground electromagnetic instrument | Zhongxing Wang, Tianxin Zhang, Renzhong Pei, Wenxiu Zhang, Qingyun Di | 2019-11-26 |
| 10429539 | Method and system for control and data processing in field operation with ground electromagnetic instrument | Zhongxing Wang, Tianxin Zhang, Renzhong Pei, Qingyun Di | 2019-10-01 |
| 10428646 | Apparatus for downhole near-bit wireless transmission | Jian Zheng, Wenxuan Chen, Qingyun Di, Yuntao Sun, Wenxiu Zhang | 2019-10-01 |
| 10379238 | Integral packaging device for acoustic receiving transducers while drilling | Jian Zheng, Wenxuan Chen, Qingyun Di, Zili Wang, Yuntao Sun +1 more | 2019-08-13 |
| 10364670 | Azimuthally acoustic imaging logging while drilling (LWD) apparatus | Jian Zheng, Wenxuan Chen, Qingyun Di, Zili Wang, Yuntao Sun +1 more | 2019-07-30 |
| 10329906 | Acoustic source testing apparatus of azimuthally acoustic logging while drilling (LWD) instrument | Jian Zheng, Zili Wang, Wenxuan Chen, Qingyun Di, Yuntao Sun +1 more | 2019-06-25 |
| 10317204 | Near-bit dynamic well deviation angle measurement method and apparatus | Yuntao Sun, Wenxuan Chen, Wenxiu Zhang, Jian Zheng | 2019-06-11 |
| 10202841 | Near-bit tool attitude measurement while drilling apparatus and method | Wenxiu Zhang, Qingyun Di, Wenxuan Chen, Yuntao Sun, Jian Zheng +1 more | 2019-02-12 |
| 10168432 | Distributed electromagnetic instrument synchronization system and method | Zhongxing Wang, Qingyun Di, Wenxiu Zhang, Binbin Chen, Renzhong Pei +1 more | 2019-01-01 |
| 10120795 | Wear-leveling nandflash memory reading/writing method | Wenxuan Chen, Qingyun Di, Wenxiu Zhang, Yuntao Sun, Jian Zheng | 2018-11-06 |
| 10082021 | Azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus | Jian Zheng, Wenxuan Chen, Qingyun Di, Yuntao Sun, Wenxiu Zhang | 2018-09-25 |
| 10030504 | Receiving apparatus suitable for azimuthally acoustic logging while drilling | Jian Zheng, Qingyun Di, Wenxuan Chen, Wenxiu Zhang, Yuntao Sun | 2018-07-24 |
| 10025003 | Calibration method under near-bit wireless short-transmission ground envrionment based on electric field theory | Yuntao Sun, Wenxuan Chen, Wenxiu Zhang, Qingyun Di, Jian Zheng | 2018-07-17 |
| 9970288 | Receiving apparatus for downhole near-bit wireless transmission | Jian Zheng, Qingyun Di, Wenxuan Chen, Yuntao Sun, Wenxiu Zhang | 2018-05-15 |