Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10444399 | Multiaxial well logging instrument response in dipping and crossbedded formations | Gong Li Wang, Peter Wu, David F. Allen, Aria Abubakar | 2019-10-15 |
| 10408965 | Adaptive inversion for vertical resistivity logs from multiaxial induction measurements | Peter Wu, Gong Li Wang, Charles A. Johnson | 2019-09-10 |
| 10345475 | Extended 1D inversion of electromagnetic measurements for formation evaluation | Gong Li Wang | 2019-07-09 |
| 10157167 | Method for determining triaxial conductivity with arbitrary orientation using multiaxial electromagnetic measurements | Gong Li Wang, Keli Sun, Aria Abubakar | 2018-12-18 |
| 9606257 | Real-time fracture detection and fracture orientation estimation using tri-axial induction measurements | Peter Wu, Dong Weixin, Dean Homan | 2017-03-28 |
| 9482775 | Real-time formation anisotropy and dip evaluation using tri-axial induction measurements | Peter Wu | 2016-11-01 |
| 9465131 | Methods for determining dielectric permittivity spectrum of underground rock formations | Barbara Anderson, Emmanuel Legendre, Martin G. Luling, Pabitra N. Sen, Reza Taherian | 2016-10-11 |
| 8884623 | Methods for determining dielectric permittivity spectrum of underground rock formations | Barbara Anderson, Emmanuel Legendre, Martin G. Luling, Pabitra N. Sen, Reza Taherian | 2014-11-11 |
| 8638104 | Method for determining spatial distribution of fluid injected into subsurface rock formations | Barbara Anderson, Reza Taherian, Martin G. Luling | 2014-01-28 |
| 7812608 | Extra bucking coils to balance induction arrays | Andrei I. Davydychev, John F. Hunka, Scott S. Chesser, Bulent Finci, Jingjing Karen Sun +2 more | 2010-10-12 |
| 7501829 | Extra bucking coils as an alternative way to balance induction arrays | Andrei I. Davydychev, John F. Hunka, Scott S. Chesser, Bulent Finci, Jingjing (Karen) Sun +2 more | 2009-03-10 |
| 7414391 | Electromagnetic logging tool calibration system | Dean Homan, Richard A. Rosthal, Gerald N. Minerbo | 2008-08-19 |
| 7386430 | Method of correcting triaxial induction arrays for borehole effect | Tracy E. Broussard, Gerald N. Minerbo, Hanming Wang, Sofia Davydycheva | 2008-06-10 |
| 7286091 | Co-located antennas | Kuo-Chiang Chen | 2007-10-23 |
| 7091877 | Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion | Stephen D. Bonner, Dean Homan, Gerald N. Minerbo, Richard A. Rosthal, Kuo-Chiang Chen | 2006-08-15 |
| 7042225 | Apparatus and methods for induction-SFL logging | — | 2006-05-09 |
| 7038457 | Constructing co-located antennas by winding a wire through an opening in the support | Kuo-Chiang Chen | 2006-05-02 |
| 7027923 | Method for determining sonde error for an induction or propagation tool with transverse or triaxial arrays | Hanming Wang | 2006-04-11 |
| 7027967 | Method and system for indicating anisotropic resistivity in an earth formation | — | 2006-04-11 |
| 6933726 | Apparatus and methods for reducing borehole current effects | Kuo-Chiang Chen, Robert C. Smith, Gary A. Hazen, Charles G. Kibbe, Richard A. Rosthal +2 more | 2005-08-23 |
| 6710601 | Borehole current correction for tilted or transverse magnetic dipoles on conductive supports | Richard A. Rosthal, Dean Homan, Stephen D. Bonner, Brian Clark, Dzevat Omeragic | 2004-03-23 |
| 6690170 | Antenna structures for electromagnetic well logging tools | Dean Homan, Gary A. Hazen, Richard A. Rosthal, David L. Smith, Paul Michael Ray +1 more | 2004-02-10 |
| 6680613 | Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole | Richard A. Rosthal, Dean Homan, Stephen D. Bonner, Brian Clark, Dzevat Omeragic | 2004-01-20 |
| 6624634 | Borehole current correction methods and apparatus | Richard A. Rosthal, Dean Homan, Stephen D. Bonner, Brian Clark, Dzevat Omeragic | 2003-09-23 |
| 6573722 | Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole | Richard A. Rosthal, Dean Homan, Stephen D. Bonner, Brian Clark, Dzevat Omeragic | 2003-06-03 |