Issued Patents All Time
Showing 26–50 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9804292 | Term by term gain calibration of triaxial propagation measurements | Paul Bertrand, Mark Frey, Luc Argentier | 2017-10-31 |
| 9606257 | Real-time fracture detection and fracture orientation estimation using tri-axial induction measurements | Peter Wu, Dong Weixin, Thomas D. Barber | 2017-03-28 |
| 9442214 | System and method for gravity measurement in a subterranean environment | — | 2016-09-13 |
| 9134449 | Directional resistivity measurement for well placement and formation evaluation | Jean Seydoux, Dzevat Omeragic | 2015-09-15 |
| 9121260 | Electrically non-conductive sleeve for use in wellbore instrumentation | — | 2015-09-01 |
| 9110099 | Shielded antenna for a downhole logging tool | Gerald N. Minerbo, Robert C. Smith | 2015-08-18 |
| 9091153 | Wireless two-way communication for downhole tools | Libo Yang, Reza Taherian, Paul Wanjau, David Rose, Onur Ozen | 2015-07-28 |
| 8884624 | Shielded antenna for a downhole logging tool | Gerald N. Minerbo, Robert C. Smith | 2014-11-11 |
| 8794318 | Formation evaluation instrument and method | Edward Harrigan, Yves Barriol, Andrei I. Davydychev, Andrew Carnegie, Srinand Karuppoor +6 more | 2014-08-05 |
| 8441261 | Determination of conductive formation orientation by making wellbore sonde error correction | Wich Wichers, Hanming Wang, Robert M. Leveridge | 2013-05-14 |
| 8368403 | Logging tool having shielded triaxial antennas | Gerald N. Minerbo, Robert C. Smith | 2013-02-05 |
| 8208777 | Structure for electrical and/or optical cable using impregnated fiber strength layer | Jason Braden, Brian Clark | 2012-06-26 |
| 8200437 | Method for borehole correction, formation dip and azimuth determination and resistivity determination using multiaxial induction measurements | Sofia Davydycheva, Dzevat Omeragic | 2012-06-12 |
| 7916092 | Flexible circuit for downhole antenna | Mark Frey | 2011-03-29 |
| 7825664 | Resistivity tool with selectable depths of investigation | Edward Nichols, Michael J. Wilt, Jean Seydoux | 2010-11-02 |
| 7812609 | Antennas for deep induction array tools with increased sensitivities | Ismael Martinez, Laurent Villegas, Gary A. Hazen | 2010-10-12 |
| 7759943 | Subsurface electromagnetic measurements using cross-magnetic dipoles | Dzevat Omeragic, Tianhua Zhang, Nicolas Sebline | 2010-07-20 |
| 7733093 | Method of and apparatus for measuring tensor resistivity | Joshua W. Gibson, Jonatan Jalfin, Hanming Wang, Christophe Dupuis, Gerald N. Minerbo | 2010-06-08 |
| 7414391 | Electromagnetic logging tool calibration system | Richard A. Rosthal, Gerald N. Minerbo, Thomas D. Barber | 2008-08-19 |
| 7239145 | Subsurface electromagnetic measurements using cross-magnetic dipoles | Dzevat Omeragic, Tianhua Zhang, Nicolas Sebline | 2007-07-03 |
| 7193420 | Insulated sleeve with conductive electrodes to reduce borehole effects for an induction tool | Kuo-Chiang Chen, Robert C. Smith, David T. Oliver, Gary A. Hazen, Jan W. Smits | 2007-03-20 |
| 7183778 | Apparatus and method to measure fluid resistivity | Andrew Cao, Brian Clark | 2007-02-27 |
| 7138897 | Induction measurements with reduced borehole effects | Gerald N. Minerbo, Sofia Davydycheva, Hanming Wang | 2006-11-21 |
| 7091877 | Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion | Thomas D. Barber, Stephen D. Bonner, Gerald N. Minerbo, Richard A. Rosthal, Kuo-Chiang Chen | 2006-08-15 |
| 7091722 | Method and apparatus for measuring mud resistivity | Dzevat Omeragic, Nicolas Sebline, Hanming Wang | 2006-08-15 |