Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10466384 | Techniques for determining formation composition from measured nuclear spectra | Richard R. Pemper | 2019-11-05 |
| 7298147 | Device and process for determination of the resistivity of a formation surrounding a cased borehole | Dominique Benimeli, Cyrille Levesque | 2007-11-20 |
| 6850317 | Apparatus and methods for determining velocity of oil in a flow stream | Oliver C. Mullins, Felix Chen, Xu Wu, Elizabeth B. Dussan V, Henning Groenzin +1 more | 2005-02-01 |
| 6489763 | Magnet assembly for nuclear magnetic resonance well logging tools | Jaideva C. Goswami, Richard W. Oldigs, Richard P. Harris | 2002-12-03 |
| 6133734 | Method and apparatus for evaluating an earth formation using nuclear magnetic resonance techiques | — | 2000-10-17 |
| 5841135 | Method and apparatus for measuring formation density and the formation photo-electric factor with a multi-detector gamma-gamma tool | Christian Stoller, Nihal Wijeyesekera, Urmi DasGupta, Peter Wraight | 1998-11-24 |
| 5408097 | Method and apparatus for correcting natural gamma ray measurements for borehole fluid effects | Peter Wraight | 1995-04-18 |
| 5219518 | Nuclear oxygen activation method and apparatus for detecting and quantifying water flow | Jean-Remy Olesen, Hugh Scott | 1993-06-15 |
| 5053620 | Logging apparatus and method for determining concentrations of subsurface formation elements | Bronislaw Seeman | 1991-10-01 |
| 5045693 | Carbon/oxygen well logging method and apparatus | Bradley A. Roscoe, Christian Stoller | 1991-09-03 |
| 4937446 | Carbon/oxygen well logging method and apparatus | Bradley A. Roscoe, Christian Stoller | 1990-06-26 |