Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7301345 | While-drilling methodology for estimating formation pressure based upon streaming potential measurements | Brian Clark, Anthony Collins, Jeffrey A. Tarvin | 2007-11-27 |
| 7243718 | Methods for locating formation fractures and monitoring well completion using streaming potential transients information | Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro | 2007-07-17 |
| 7233150 | While-drilling apparatus for measuring streaming potentials and determining earth formation characteristics | Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro | 2007-06-19 |
| 7000697 | Downhole measurement apparatus and technique | Peter A. Goode, Rod Nelson, David Rossi, Terizhandur S. Ramakrishnan | 2006-02-21 |
| 6978672 | Wireline apparatus for measuring steaming potentials and determining earth formation characteristics | Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro | 2005-12-27 |
| 6415864 | System and method for separately producing water and oil from a reservoir | Terizhandur S. Ramakrishnan, Brindesh Dhruva, Raj Kumar Michael Thambynayagam, Peter A. Goode, Rod Nelson | 2002-07-09 |
| 6191588 | Methods and apparatus for imaging earth formation with a current source, a current drain, and a matrix of voltage electrodes therebetween | — | 2001-02-20 |
| 6182013 | Methods and apparatus for dynamically estimating the location of an oil-water interface in a petroleum reservoir | Alberto Malinverno, David Rossi, Metin Karakas, Brian R. Spies, Carlos Torres-Verdin +1 more | 2001-01-30 |
| 5038378 | Method and apparatus for smoothing measurements and detecting boundaries of features | — | 1991-08-06 |
| 5012193 | Method and apparatus for filtering data signals produced by exploration of earth formations | — | 1991-04-30 |
| 5008625 | Method and apparatus for logging and displaying a two dimensional image of spontaneous potential | — | 1991-04-16 |