Issued Patents All Time
Showing 26–50 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8890541 | Method and apparatus for calibrating deep-reading multi-component induction tools with minimal ground effects | Fei Le, Michael Rabinovich | 2014-11-18 |
| 8847600 | Use of autotransformer-like antennas for downhole applications | Jack Signorelli, Samuel R. Bell, Sheng Fang | 2014-09-30 |
| 8803527 | Use of electrodes and multi-frequency focusing to correct eccentricity and misalignment effects on transversal induction measurements | Michael Rabinovich, Alexandre N. Bespalov | 2014-08-12 |
| 8629678 | Formation resistivity imaging in conductive boreholes | Randy Gold, Dinesh P. Shah | 2014-01-14 |
| 8614579 | Active standoff compensation in measurements with oil-based mud resistivity imaging devices | Randy Gold | 2013-12-24 |
| 8405397 | Method for mitigating leakage currents | Randy Gold | 2013-03-26 |
| 8400158 | Imaging in oil-based mud by synchronizing phases of currents injected into a formation | Leonty A. Tabarovsky | 2013-03-19 |
| 8354846 | Method and apparatus for reducing effect of tool eccentricity in a borehole on multi-axial induction measurements | Luis M. Pelegri, Randy Gold | 2013-01-15 |
| 8299797 | Method and apparatus for well logging resistivity image tomography | Randy Gold | 2012-10-30 |
| 8301384 | Wellbore logging performance verification method and apparatus | Randy Gold, Zhiyong Jiang, Carlos A. Yanzig | 2012-10-30 |
| 8237446 | High resolution resistivity earth imager | Randy Gold, Peter J. Nolan, Carlos A. Yanzig | 2012-08-07 |
| 8089277 | System and method implementing inherently conducting polymers for downhole applications | Rocco DiFoggio | 2012-01-03 |
| 8049507 | Transient EM for geosteering and LWD/wireline formation evaluation | Michael Rabinovich, Alexandre N. Bespalov, Daniel T. Georgi, Gregory B. Itskovich, Leonty A. Tabarovsky | 2011-11-01 |
| 8014963 | Correction of sensor non-equipotentiality in a resistivity imaging device | Tsili Wang | 2011-09-06 |
| 7973532 | Downhole spread spectrum induction instruments | Roland E. Chemali | 2011-07-05 |
| 7969153 | Borehole conductivity simulator verification and transverse antenna balancing | Randy Gold, Luis M. Pelegri | 2011-06-28 |
| 7932723 | Borehole conductivity simulator verification and transverse coil balancing | Randy Gold, Luis M. Pelegri | 2011-04-26 |
| 7902827 | Method and apparatus for combined induction and imaging well logging | Randy Gold, Otto N. Fanini, Michael S. Crosskno | 2011-03-08 |
| 7896073 | Apparatus for formation resistivity imaging in wells with oil-based drilling fluids | Randy Gold | 2011-03-01 |
| 7855560 | Analog front-end coherent in-phase demodulation data acquisition system for resistivity image tools | Jinsong Zhao | 2010-12-21 |
| 7804302 | Method and apparatus for enhancing formation resistivity images obtained with downhole galvanic tools | Randy Gold | 2010-09-28 |
| 7797111 | Wellbore logging performance verification method and apparatus | Randy Gold, Zhiyong Jiang, Carlos A. Yanzig | 2010-09-14 |
| 7778778 | Correction of multi-component measurements for tool eccentricity in deviated wells | Alexandre N. Bespalov, Gulamabbas Merchant, Cynthia Dong Xue, Luis M. Pelegri, Michael Rabinovich +3 more | 2010-08-17 |
| 7759940 | Mutual shielding of collocated induction coils in multi-component induction logging instruments | Randy Gold, Luis M. Pelegri | 2010-07-20 |
| 7726193 | Electromagnetic acoustic transducer with cross-talk elimination | Arcady Reiderman | 2010-06-01 |