Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10597962 | Drilling with a whipstock system | Victor Carlos Costa de Oliveira, Mario Augusto Rivas Martinez | 2020-03-24 |
| 10557330 | Interchangeable wellbore cleaning modules | Victor Carlos Costa de Oliveira, Mario Augusto Rivas Martinez, Khaled K. Abouelnaaj | 2020-02-11 |
| 10544344 | Methods and systems for neutralizing hydrogen sulfide during drilling | Ihab Elhabrouk | 2020-01-28 |
| 10502009 | Smart selective drilling fluid system | — | 2019-12-10 |
| 10478754 | Systems and methods comprising smart sample catcher for drilling operations | Victor Carlos Costa de Oliveira, Mario Augusto Rivas Martinez | 2019-11-19 |
| 10378339 | Method and apparatus for controlling wellbore operations | Victor Carlos Costa de Oliveira, Mario Augusto Rivas Martinez | 2019-08-13 |
| 10132129 | Managed pressure drilling with rig heave compensation | Donald G. Reitsma, Yawan Couturier | 2018-11-20 |
| 9429007 | Managed pressure drilling with rig heave compensation | Donald G. Reitsma, Yawan Couturier | 2016-08-30 |
| 9376875 | Wellbore annular pressure control system and method using gas lift in drilling fluid return line | Donald D. Reitsma, Yawan Couturier | 2016-06-28 |
| 9328574 | Method for characterizing subsurface formations using fluid pressure response during drilling operations | — | 2016-05-03 |
| 9284799 | Method for drilling through nuisance hydrocarbon bearing formations | Donald G. Reitsma, Yawan Couturier | 2016-03-15 |
| 8844633 | Method for maintaining wellbore pressure | Donald G. Reitsma | 2014-09-30 |
| 8757272 | Method and apparatus for precise control of wellbore fluid flow | Yawan Couturier, Donald G. Reitsma | 2014-06-24 |
| 7984770 | Method for determining formation integrity and optimum drilling parameters during drilling | — | 2011-07-26 |
| 7708064 | Wellbore pipe centralizer having increased restoring force and self-sealing capability | — | 2010-05-04 |