Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9429007 | Managed pressure drilling with rig heave compensation | Donald G. Reitsma, Ossama R. Sehsah | 2016-08-30 |
| 9376875 | Wellbore annular pressure control system and method using gas lift in drilling fluid return line | Donald D. Reitsma, Ossama R. Sehsah | 2016-06-28 |
| 9284799 | Method for drilling through nuisance hydrocarbon bearing formations | Donald G. Reitsma, Ossama R. Sehsah | 2016-03-15 |