Issued Patents All Time
Showing 51–75 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7598741 | Method and apparatus for internal calibration in induction logging instruments | Stanislav W. Forgang, Michael S. Crosskno | 2009-10-06 |
| 7463035 | Method and apparatus for the use of multicomponent induction tool for geosteering and formation resistivity data interpretation in horizontal wells | Gulamabbas Merchant, Berthold Kriegshauser, Liming Yu | 2008-12-09 |
| 7375530 | Method for signal enhancement in azimuthal propagation resistivity while drilling | Roland E. Chemali, Paul Cairns, Tsili Wang, Wallace H. Meyer, Andrew Brooks +1 more | 2008-05-20 |
| RE40167 | Nuclear magnetic resonance fluid characterization apparatus and method for using with electric wireline formation testing instruments | Carl M. Edwards, Stanislav W. Forgang | 2008-03-25 |
| 7268556 | Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells | Stanislav W. Forgang, Berthold Kriegshauser, Liming Yu | 2007-09-11 |
| 7199586 | Method and apparatus for accurately measuring properties of a formation | Stanislav W. Forgang, Michael S. Crosskno | 2007-04-03 |
| 7190169 | Method and apparatus for internal calibration in induction logging instruments | Stanislav W. Forgang, Michael S. Crosskno | 2007-03-13 |
| 7157915 | Combined characterization and inversion of reservoir parameters from nuclear, NMR and resistivity measurements | Juergen Schoen, Daniel T. Georgi | 2007-01-02 |
| 7043370 | Real time processing of multicomponent induction tool data in highly deviated and horizontal wells | Liming Yu, Berthold Kriegshauser | 2006-05-09 |
| 6925031 | Method of using electrical and acoustic anisotropy measurements for fracture identification | Berthold Kriegshauser, Richard A. Mollison, Liming Yu, Tsili Wang, Xiao Ming Tang | 2005-08-02 |
| 6900640 | Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells | Stanislav W. Forgang, Berthold Kriegshauser, Liming Yu | 2005-05-31 |
| 6885947 | Method for joint interpretation of multi-array induction and multi-component induction measurements with joint dip angle estimation | Jiaqi Xiao, Berthold Kriegshauser, Liming Yu, Gulamabbas Merchant | 2005-04-26 |
| 6819111 | METHOD OF DETERMINING VERTICAL AND HORIZONTAL RESISTIVITY, AND RELATIVE DIP IN ANISOTROPIC EARTH FORMATIONS HAVING AN ARBITRARY ELECTRO-MAGNETIC ANTENNA COMBINATION AND ORIENTATION WITH ADDITIONAL ROTATION AND POSITION MEASUREMENTS | Gulamabbas Merchant | 2004-11-16 |
| 6734675 | Apparatus accurately measuring properties of a formation | Stanislav W. Forgang, Michael S. Crosskno | 2004-05-11 |
| 6711502 | Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model | Richard A. Mollison, Juergen Schoen, Berthold Kriegshauser, Milomir Pavlovic | 2004-03-23 |
| 6686736 | Combined characterization and inversion of reservoir parameters from nuclear, NMR and resistivity measurements | Juergen Schoen, Daniel T. Georgi | 2004-02-03 |
| 6677756 | Multi-component induction instrument | Stanislav W. Forgang | 2004-01-13 |
| 6627873 | Down hole gas analyzer method and apparatus | Borislav J. Tchakarov, Rocco DiFoggio, Stanislav W. Forgang, Marcelo F. Civarolo, James C. Hunziker | 2003-09-30 |
| 6618676 | Efficient and accurate pseudo 2-D inversion scheme for multicomponent induction log data | Berthold Kriegshauser, Steve McWilliams, Liming Yu | 2003-09-09 |
| 6591194 | Vertical 1-D inversion with thin layers of equal thickness | Liming Yu, Berthold Kriegshauser, Jiaqi Xiao | 2003-07-08 |
| 6586939 | Method and apparatus for reducing the effects of parasitic and galvanic currents in a resistivity measuring tool | Stanislav W. Forgang, Michael S. Crosskno | 2003-07-01 |
| 6553314 | Method for determination of apparent resistivities of anisotropic reservoirs | Berthold Kriegshauser, Pravin Gupta, Liming Yu | 2003-04-22 |
| 6529833 | Reservoir monitoring in a laminated reservoir using 4-D time lapse data and multicomponent induction data | Eric M. Withjack, Sven Treitel | 2003-03-04 |
| 6493632 | Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model | Richard A. Mollison, Juergen Schoen, Berthold Kriegshauser, Milomir Pavlovic | 2002-12-10 |
| 6470274 | Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial dual water saturation model | Richard A. Mollison, Berthold Kriegshauser, Milomir Pavlovic | 2002-10-22 |