Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12297733 | Azimuthal scanning of a wellbore for determination of a cement-bond condition and for detecting/locating a leak source | Ruijia Wang, Jing Jin, Xiang Wu | 2025-05-13 |
| 12265062 | Through tubing cement evaluation using converted multipole resonance mode | Ruijia Wang, Ho Yin Ma | 2025-04-01 |
| 12242010 | Hydrophone gain design for array noise tool | Xiang Wu, Yadong Wang | 2025-03-04 |
| 12234716 | Multi-pole resonance based through tubing cement evaluation | Ruijia Wang, Ho Yin Ma, Xiang Wu | 2025-02-25 |
| 12196908 | Through tubing cement evaluation based on casing extensional waves | Ruijia Wang, Brenno Caetano Troca Cabella, Chung Chang, Jing Jin, Ho Yin Ma +1 more | 2025-01-14 |
| 12098630 | Movement noise suppression in a moving array for downhole leakage localization | Yi Yang Ang | 2024-09-24 |
| 12078052 | Tubing eccentricity evaluation using acoustic signals | Brenno Caetano Troca Cabella, Xiang Wu, Marco Aurelio Luzio, Pablo Vieira Rego, Chung Chang +3 more | 2024-09-03 |
| 12032113 | Through tubing cement evaluation based on rotatable transmitter and computational rotated responses | Xiang Wu, Ruijia Wang, Ho Yin Ma | 2024-07-09 |
| 11970931 | Through tubing cement evaluation using borehole resonance mode | Ho Yin Ma, Ruijia Wang, Jing Jin, Brenno Caetano Troca Cabella, Xiang Wu | 2024-04-30 |
| 11946364 | Removing guided wave noise from recorded acoustic signals | Ruijia Wang, Philip William Tracadas, Yi Yang Ang, Xiang Wu | 2024-04-02 |
| 11927712 | Downhole ultrasound image correction in oil based mud | Yu Weng, Peng Li, Chung Chang, Richard Timothy Coates, Rodney Allen Marlow +2 more | 2024-03-12 |
| 11815643 | Selection and removal of acoustic baseline signal for enhanced cement bond evaluation | Ruijia Wang, Xiang Wu | 2023-11-14 |
| 11774619 | Reduction of a tool wave excited by a transmitter of a well logging tool | Ruijia Wang, Jing Jin | 2023-10-03 |
| 11746644 | Measuring low-frequency casing guided waves to evaluate cement bond condition behind casing in the presence of a tubing | Ruijia Wang | 2023-09-05 |
| 11733419 | Removal of signal ringdown noise | Xiang Wu, Jing Jin | 2023-08-22 |
| 11674383 | Acoustic beamforming techniques with simultaneous acoustic velocity estimation | Yadong Wang, Xiang Wu | 2023-06-13 |
| 11662496 | Through tubing acoustic measurements | Brenno Caetano Troca Cabella, Ruijia Wang, Chung Chang, Qingtao Sun, Xiang Wu +3 more | 2023-05-30 |
| 11656382 | Leak induced guided wave amplitude log for downhole leakage localization | Ruijia Wang, Xiang Wu, Jing Jin | 2023-05-23 |
| 11639460 | Nanometer self-locking bentonite film-forming agent, method for preparing the same, and film-forming drilling fluid | Wenxin Dong, Xiaolin Pu, Jinyang Fan, Wenhao Liu, Siyi Chen +8 more | 2023-05-02 |
| 11592591 | Through tubing acoustic measurements to determine material discontinuities | Brenno Caetano Troca Cabella, Ruijia Wang, Xiang Wu | 2023-02-28 |
| 11566510 | Ultrasonic echo locating in a wellbore using time gain compensation | Jing Jin, Xiang Wu | 2023-01-31 |
| 11554387 | Ringdown controlled downhole transducer | Jing Jin, Ruijia Wang | 2023-01-17 |
| 11525936 | Through casing formation slowness evaluation with a sonic logging tool | Ruijia Wang, Xiang Wu, Jing Jin | 2022-12-13 |
| 11480702 | Ultrasonic transducer with reduced backing reflection | Jing Jin, Wei Li, Xiang Wu | 2022-10-25 |
| 11415720 | Downhole ultrasound image correction in oil based mud | Yu Weng, Peng Li, Chung Chang, Richard Timothy Coates, Rodney Allen Marlow +2 more | 2022-08-16 |