Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10344533 | Predicting drillability based on electromagnetic emissions during drilling | Yuliy A. Dashevsky, Sergey A. Terentev, Vitaly N. Dorovsky | 2019-07-09 |
| 8880348 | Radon migration of acoustic data | Alexei Bolshakov, Xiao Ming Tang, Douglas J. Patterson, Zarema Dubinsky | 2014-11-04 |
| 8867306 | Resonance method of radial oscillations for measuring permeability of rock formations | Vitaly N. Dorovsky, Alexander I. Fedorov | 2014-10-21 |
| 8630146 | Method and apparatus for estimating formation permeability and electroacoustic constant of an electrolyte-saturated multi-layered rock taking into account osmosis | Vitaly N. Dorovsky, Yuriy A. Nefedkin, Alexander I. Fedorov, Maxim Y. Podberezhnyy, Yury Vadimovich Perepechko | 2014-01-14 |
| 8576659 | Method and apparatus for acoustic impedance and P-wave anisotropy measurements | Sergey Egerev, Victor Yushin, Oleg Ovchinnikov, Xiao Ming Tang, Douglas J. Patterson | 2013-11-05 |
| 8427162 | Apparatus and method for detection of position of a component in an earth formation | Alexandre N. Bespalov, Rashid W. Khokhar | 2013-04-23 |
| 8305081 | Cancellation of vibration noise in deep transient resistivity measurements while drilling | Arcady Reiderman | 2012-11-06 |
| 8261873 | Electromagnetic linear drive source for logging-while-drilling/wireline acoustic applications | Valeriy Richenstev, Douglas J. Patterson, Jonathan F. Hook, David H. Lilly | 2012-09-11 |
| 8004932 | Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging | Yibing Zheng, Daniel Moos, Xiao Ming Tang, Douglas J. Patterson | 2011-08-23 |
| 7924652 | Method for determining seismic anisotropy | Xiao Ming Tang, Yibing Zheng | 2011-04-12 |
| 7813219 | Electro-magnetic acoustic measurements combined with acoustic wave analysis | Vitaly N. Dorovsky, Xiao Ming Tang | 2010-10-12 |
| 7773454 | Method and apparatus for cement evaluation using multiple acoustic wave types | Joseph Gregory Barolak, Douglas J. Patterson, Alexei Bolshakov, Xiao Ming Tang | 2010-08-10 |
| 7681450 | Casing resonant radial flexural modes in cement bond evaluation | Alexei Bolshakov, Xiao Ming Tang, Douglas J. Patterson, Dimitri Donskoy, Joseph Gregory Barolak | 2010-03-23 |
| 7663969 | Use of Lamb waves in cement bond logging | Xiao Ming Tang, Alexei Bolshakov, Joseph Gregory Barolak, Douglas J. Patterson, Ron Alers +1 more | 2010-02-16 |
| 7652951 | Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications | James V. Leggett, III | 2010-01-26 |
| 7646673 | Wave analysis using phase velocity processing | Rais Akhmetsafin, Douglas J. Patterson | 2010-01-12 |
| 7626886 | P-wave anisotropy determination using borehole measurements | Xiao Ming Tang, Yibing Zheng, Douglas J. Patterson | 2009-12-01 |
| 7463551 | Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications | James V. Leggett, III | 2008-12-09 |
| 7301852 | Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications | James V. Leggett, III | 2007-11-27 |
| 7172037 | Real-time drilling optimization based on MWD dynamic measurements | Dmitriy Dashevskiy, John D. Macpherson, Pat McGinley | 2007-02-06 |
| 7150317 | Use of electromagnetic acoustic transducers in downhole cement evaluation | Joseph Gregory Barolak, Alexei Bolshakov, Douglas J. Patterson | 2006-12-19 |
| 7032707 | Acoustic isolator downhole applications | Sergey Egerev, Vladimir Belov, Alexei Bolshakov, Victor Tiutekin, Victor Yushin | 2006-04-25 |
| 7028806 | Acoustic isolator for downhole applications | Alexei Bolshakov | 2006-04-18 |
| 6930616 | Method and apparatus for LWD shear velocity measurement | Xiao Ming Tang, Tsili Wang, Douglas J. Patterson, James V. Leggett, III | 2005-08-16 |
| 6915875 | Acoustic isolator for downhole applications | Alexei Bolshakov | 2005-07-12 |