| 8576661 |
Device and method for imaging of non-linear and linear properties of formations surrounding a borehole |
Paul A. Johnson, Pierre-Yves Le Bas, Robert Guyer, Cung Vu, Christopher Skelt |
2013-11-05 |
| 8553495 |
Device and method for imaging of non-linear and linear properties of formations surrounding a borehole |
Paul A. Johnson, Pierre-Yves Le Bas, Robert Guyer, Cung Vu, Christopher Skelt |
2013-10-08 |
| 8345509 |
System and method to create three-dimensional images of non-linear acoustic properties in a region remote from a borehole |
Cung Vu, Kurt Nihei, Denis P. Schmitt, Christopher Skelt, Paul A. Johnson +2 more |
2013-01-01 |
| 8289808 |
System and method to estimate compressional to shear velocity (VP/VS) ratio in a region remote from a borehole |
Cung Vu, Kurt Nihei, Denis P. Schmitt, Christopher Skelt, Paul A. Johnson +2 more |
2012-10-16 |
| 6330827 |
Resonant nonlinear ultrasound spectroscopy |
Paul A. Johnson, Robert Guyer, Koen Van Den Abeele |
2001-12-18 |
