Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8071512 | Annular fluids and method of emplacing the same | Andrew G. K. Jones, Bethicia B. Prasek | 2011-12-06 |
| 8067343 | Methods and compositions for preventing high density well completion fluid loss | Bethicia B. Prasek | 2011-11-29 |
| 8017563 | Diverting compositions, fluid loss control pills, and breakers thereof | Michael A. Freeman, Bethicia B. Prasek | 2011-09-13 |
| 7863223 | Oil-based insulating packer fluid | Larry H. Leggett, Charles Svoboda, Morris Arvie, Jr., Joyce H. Zhang | 2011-01-04 |