Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7866394 | Compositions and methods of cementing in subterranean formations using a swelling agent to inhibit the influx of water into a cement slurry | Prentice G. Creel, Richard H. Tate, Eldon D. Dalrymple, Stephen P. Luscombe, John L. Eubank | 2011-01-11 |
| 6889766 | Methods for passing a swelling agent into a reservoir to block undesirable flow paths during oil production | Prentice G. Creel, Sam W. McDonald, Richard H. Tate, Eldon D. Dalrymple | 2005-05-10 |
| 6315061 | Brine-based drilling fluids for ballast tank storage | Brent L. Estes, Leonard Morales, Jr. | 2001-11-13 |