Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11280931 | Reservoir formation characterization from NMR T1/T2 ratio | Yusheng Cheng, Songhua Chen, Wei Shao | 2022-03-22 |
| 10983077 | Determining the oleophilic to aqueous phase fluid ratio for drilling fluids | Songhua Chen, Cato Russell McDaniel, Jason Glen Bell, William Walter Shumway | 2021-04-20 |
| 10379249 | Oil viscosity prediction | Songhua Chen, Yuesheng Cheng | 2019-08-13 |
| 10353032 | Viscosity determination apparatus, systems, and methods | Songhua Chen | 2019-07-16 |
| 9791589 | Downhole differentiation of light oil and oil-based filtrates by NMR with oleophilic nanoparticles | Songhua Chen, Ronald E. Cherry | 2017-10-17 |
| 9465133 | Downhole differentiation of light oil and oil-based filtrates by NMR with oleophilic nanoparticles | Songhua Chen, Ronald E. Cherry | 2016-10-11 |