Issued Patents All Time
Showing 51–75 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8089268 | Apparatus and method for removing anisotropy effect from directional resistivity measurements | — | 2012-01-03 |
| 8030938 | Apparatus and method for imaging subsurface materials using a pad having a plurality of electrode sets | Alexandre N. Bespalov, David R. Beard, Randy Gold, Gregory B. Itskovich | 2011-10-04 |
| 8014963 | Correction of sensor non-equipotentiality in a resistivity imaging device | Stanislav W. Forgang | 2011-09-06 |
| 8008919 | Method for compensating drill pipe and near-borehole effect on and electronic noise in transient resistivity measurements | Roland E. Chemali | 2011-08-30 |
| 7994790 | Electromagnetic and magnetostatic shield to perform measurements ahead of the drill bit | Gregory B. Itskovich, Roland E. Chemali | 2011-08-09 |
| 7990153 | Compensated directional resistivity measurements | Christopher C. Streinz | 2011-08-02 |
| 7952358 | Methods and apparatus for determination of a formation resistivity property using eccentered measurements | Cynthia Dong Xue, Luis M. Pelegri | 2011-05-31 |
| 7915895 | Method of calibrating an azimuthal inductive cross-coil or tilted coil instrument | Roland E. Chemali, Wallace H. Meyer, Gulamabbas Merchant | 2011-03-29 |
| 7912648 | Method and apparatus for imaging bed boundaries using azimuthal propagation resistivity measurements | Xiao Ming Tang | 2011-03-22 |
| 7899622 | Sequential resistivity imaging with asymmetric electrode arrays | — | 2011-03-01 |
| 7894990 | Method of generating a deep resistivity image in LWD measurements | Roland E. Chemali | 2011-02-22 |
| 7839149 | Multi-component resistivity logging tool with multiple antennas using common antenna grooves | John A. Signorelli, Sheng Fang, Roland E. Chemali | 2010-11-23 |
| 7742008 | Multipole antennae for logging-while-drilling resistivity measurements | Jack Signorelli | 2010-06-22 |
| 7723991 | Apparatus and method for azimuthal MWD resistivity imaging at multiple depths of investigation | Jack Signorelli, Roland E. Chemali | 2010-05-25 |
| 7663372 | Resistivity tools with collocated antennas | Jack Signorelli | 2010-02-16 |
| 7657375 | Method and apparatus for correcting underestimation of formation anisotropy ratio | Alexandre N. Bespalov, Bill H. Corley, Daniel T. Georgi, Michael Rabinovich | 2010-02-02 |
| 7609066 | Apparatus and method for measuring micro-resistivity anisotropy | — | 2009-10-27 |
| 7554328 | Method and apparatus for reducing borehole and eccentricity effects in multicomponent induction logging | Alexandre N. Bespalov | 2009-06-30 |
| 7545145 | Method and apparatus for tensorial micro-resistivity imaging in oil-based muds | — | 2009-06-09 |
| 7525872 | Method and apparatus for cement bond evaluation using transversely polarized shear waves | Xiao Ming Tang, Alexei Bolshakov, Douglas J. Patterson | 2009-04-28 |
| 7505851 | Use of multi-component measurements in delineating geology of deep-water sediments | Adriaan A. Bal, David J. Prosser | 2009-03-17 |
| 7483793 | Method of generating a deep resistivity image in LWD measurements | Roland E. Chemali | 2009-01-27 |
| 7471088 | Elimination of the anisotropy effect in LWD azimuthal resistivity tool data | Liming Yu, Jack Signorelli | 2008-12-30 |
| 7437251 | Correction of sensor non-equipotentiality in a resistivity imaging device | Stanislav W. Forgang | 2008-10-14 |
| 7414407 | Method and apparatus for directional resistivity measurement while drilling | Leonty A. Tabarovsky, Boris Tchakarov, John A. Signorelli, Sheng Fang | 2008-08-19 |