Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542474 | Foam mixture for carbon dioxide drive oil recovery method | Ralph V. Garling, David T. Hand, Jennifer Macfadyen | 1996-08-06 |
| 5513705 | Foam mixture for steam and carbon dioxide drive oil recovery method | Ralph V. Garling, David T. Hand, Jennifer Macfadyen | 1996-05-07 |
| 5470749 | Method for determining steam quality using a foaming surfactant | Eve S. Sprunt | 1995-11-28 |
| 5325920 | Enhanced oil recovery from low permeability reservoirs using organosilicone surfactants | — | 1994-07-05 |
| 5299453 | Method for determining oil and water saturation of core samples at overburden pressure | Eve S. Sprunt | 1994-04-05 |
| 5295540 | Foam mixture for steam and carbon dioxide drive oil recovery method | Ralph V. Garling | 1994-03-22 |
| 5214384 | Method including electrical self potential measurements for detecting multiphase flow in a cased hole | Eve S. Sprunt | 1993-05-25 |
| 4899817 | Miscible oil recovery process using carbon dioxide and alcohol | — | 1990-02-13 |
| 4736793 | Tall oil as additive in gas drive hydrocarbon oil recovery | — | 1988-04-12 |
| 4703797 | Sweep improvement in enhanced oil recovery | — | 1987-11-03 |
| 4605066 | Oil recovery method employing carbon dioxide flooding with improved sweep efficiency | — | 1986-08-12 |
| 4589276 | Method and apparatus for determining effectiveness of foamant in porous media | — | 1986-05-20 |