Issued Patents All Time
Showing 101–125 of 144 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8593147 | Resistivity logging with reduced dip artifacts | — | 2013-11-26 |
| 8581592 | Downhole methods and assemblies employing an at-bit antenna | Clive D. Menezes | 2013-11-12 |
| 8347985 | Mulitmodal geosteering systems and methods | Jennifer Market, Clive D. Menezes | 2013-01-08 |
| 8316936 | Use of micro-electro-mechanical systems (MEMS) in well treatments | Craig W. Roddy, Rick L. Covington, Krishna M. Ravi, Clovis Bonavides, Gordon L. Moake +1 more | 2012-11-27 |
| 8291975 | Use of micro-electro-mechanical systems (MEMS) in well treatments | Craig W. Roddy, Rick L. Covington, Krishna M. Ravi, Gary James Frisch, Batakrishna Mandal +2 more | 2012-10-23 |
| 8274289 | Antenna coupling component measurement tool having rotating antenna configuration | Guoyu Hu | 2012-09-25 |
| 8264228 | Method and apparatus for building a tilted antenna | Randal Thomas Beste, Vadim Minosyan, Mark A. Sitka | 2012-09-11 |
| 8222902 | Modular geosteering tool assembly | Clive D. Menezes, Martin D. Paulk | 2012-07-17 |
| 8174265 | Antenna cutout in a downhole tubular | Randal Thomas Beste | 2012-05-08 |
| 8085049 | Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone | — | 2011-12-27 |
| 8085050 | Robust inversion systems and methods for azimuthally sensitive resistivity logging tools | Guoyu Hu | 2011-12-27 |
| 8030937 | Multiple frequency based leakage correction for imaging in oil based muds | Guoyu Hu, William J. Schaecher | 2011-10-04 |
| 7982464 | Drilling systems and methods using radial current flow for boundary detection or boundary distance estimation | Guoyu Hu, William Hendricks | 2011-07-19 |
| 7948238 | Electromagnetic wave resistivity tool having a tilted antenna for determining properties of earth formations | — | 2011-05-24 |
| 7839346 | Ruggedized multi-layer printed circuit board based downhole antenna | Jesse Kevin Hensarling | 2010-11-23 |
| 7839148 | Method and system for calibrating downhole tools for drift | Imran Sharif Vehra, James Joseph Freeman, Christopher Golla, Randal Thomas Beste | 2010-11-23 |
| 7746078 | Method and system of calculating resistivity of an earth formation | Guoyu Hu, James Buchanan | 2010-06-29 |
| 7659722 | Method for azimuthal resistivity measurement and bed boundary detection | — | 2010-02-09 |
| 7557580 | Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone | — | 2009-07-07 |
| 7557579 | Electromagnetic wave resistivity tool having a tilted antenna for determining the horizontal and vertical resistivities and relative dip angle in anisotropic earth formations | — | 2009-07-07 |
| 7427863 | Method and system for calculating resistivity of an earth formation | Guoyu Hu, James Buchanan | 2008-09-23 |
| 7350568 | Logging a well | Batakrishna Mandal | 2008-04-01 |
| 7345487 | Method and system of controlling drilling direction using directionally sensitive resistivity readings | Jesse Kevin Hensarling | 2008-03-18 |
| 7265552 | Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone | — | 2007-09-04 |
| 7227363 | Determining formation anisotropy based in part on lateral current flow measurements | Stanley C. Gianzero | 2007-06-05 |