Issued Patents All Time
Showing 1–25 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10739486 | Determination of dispersive resistive and dielectric properties of earth formations using multi-frequency measurements | Marina N. Nikitenko, Alexander Viktorovich Seryakov, Yinxi Zhang | 2020-08-11 |
| 10564310 | Dielectric logging with broadband excitation | Fei Le, Rashid W. Khokhar | 2020-02-18 |
| 10520633 | Dual-transmitter with short shields for transient MWD resistivity measurements | — | 2019-12-31 |
| 10254430 | Downhole deep transient measurements with improved sensors | Sheng Fang, Sushant Dutta, Steven A. Morris | 2019-04-09 |
| 10197695 | Method and apparatus for estimating formation properties using transient electromagnetic measurements while drilling | Sushant Dutta, Steven A. Morris, Marina N. Nikitenko | 2019-02-05 |
| 10139517 | Hybrid image of earth formation based on transient electromagnetc measurements | Fei Le, Marina N. Nikitenko | 2018-11-27 |
| 10073187 | Dual mode balancing in OBM resistivity imaging | Alexandre N. Bespalov | 2018-09-11 |
| 9857499 | Downhole transient resistivity measurements | — | 2018-01-02 |
| 9746574 | Resistivity imager for conductive and non-conductive mud | Stanislav W. Forgang, Sven Krueger, Fei Le | 2017-08-29 |
| 9709692 | Method and apparatus for borehole wall resistivity imaging with full circumferential coverage | Alexandre N. Bespalov, Farhat A. Shaikh, Peter J. Nolan | 2017-07-18 |
| 9588250 | Three-coil system with short nonconductive inserts for transient MWD resistivity measurements | Arcady Reiderman | 2017-03-07 |
| 9562990 | Fast inversion of MWD transient EM data excited by a pulse of an arbitrary shape | Marina N. Nikitenko | 2017-02-07 |
| 9551806 | Determination and display of apparent resistivity of downhole transient electromagnetic data | Fei Le, Steven A. Morris, Sushant Dutta | 2017-01-24 |
| 9482777 | Transient electromagnetic tool mounted on reduced conductivity tubular | Steven A. Morris, Teruhiko Hagiwara | 2016-11-01 |
| 9310511 | Apparatus and method for deep transient resistivity measurement | — | 2016-04-12 |
| 9297921 | DTEM with short spacing for deep, ahead of the drill bit measurements | Arcady Reiderman, Michael Rabinovich, Sergey Martakov, Emma Iomdina | 2016-03-29 |
| 9229125 | TDEM forward focusing system for downhole use | — | 2016-01-05 |
| 9121963 | Dual mode balancing in OBM resistivity imaging | Alexandre N. Bespalov | 2015-09-01 |
| 8972193 | Formation resistivity imager with reduced leakage to mandrel | Alexandre N. Bespalov, Stanislav W. Forgang | 2015-03-03 |
| 8862406 | Electrical imager operating in oil-based mud and low resistive formation | David R. Beard, Fei Le | 2014-10-14 |
| 8786288 | Concentric buttons of different sizes for imaging and standoff correction | Matthias Gorek, Alexandre N. Bespalov, Frank Daschner, Reinhard Knochel | 2014-07-22 |
| 8633701 | Method and apparatus for galvanic multi-frequency formation resistivity imaging | Alexandre N. Bespalov | 2014-01-21 |
| 8554482 | Monitoring reservoirs using array based controlled source electromagnetic methods | Roger Fincher, Michael Rabinovich | 2013-10-08 |
| 8390294 | Multi-resolution borehole resistivity imaging | Randy Gold, Alexandre N. Bespalov | 2013-03-05 |
| 8332152 | Method and apparatus for eliminating drill effect in pulse induction measurements | Roland E. Chemali | 2012-12-11 |