Issued Patents 1994
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370181 | Anti gas-migration cementing | Kazem Javanmardi | 1994-12-06 |
| 5358049 | Conversion of emulsion mud to cement | Arthur H. Hale, Kenneth M. Cowan | 1994-10-25 |
| 5351759 | Slag-cement displacement by direct fluid contact | Kazem Javanmardi | 1994-10-04 |
| 5333690 | Cementing with blast furnace slag using spacer | Reece E. Wyant | 1994-08-02 |
| 5332040 | Process to cement a casing in a wellbore | Arthur H. Hale, Kenneth M. Cowan | 1994-07-26 |
| 5330006 | Oil mud displacement with blast furnace slag/surfactant | Kenneth M. Cowan, Reece E. Wyant | 1994-07-19 |
| 5316083 | Blast furnace slag spacer | Reece E. Wyant | 1994-05-31 |
| 5314031 | Directional drilling plug | Arthur H. Hale, Kenneth M. Cowan | 1994-05-24 |
| 5314022 | Dilution of drilling fluid in forming cement slurries | Kenneth M. Cowan, Arthur H. Hale | 1994-05-24 |
| 5309999 | Cement slurry composition and method to cement wellbore casings in salt formations | Kenneth M. Cowan, Arthur H. Hale | 1994-05-10 |
| 5309997 | Well fluid for in-situ borehole repair | Reece E. Wyant | 1994-05-10 |
| 5307876 | Method to cement a wellbore in the presence of carbon dioxide | Kenneth M. Cowan, Arthur H. Hale | 1994-05-03 |
| 5305831 | Blast furnace slag transition fluid | — | 1994-04-26 |
| 5277519 | Well drilling cuttings disposal | — | 1994-01-11 |
| 5275511 | Method for installation of piles in offshore locations | John H. Pelletier, Kris Digre, Earl H. Doyle, Jr., Kenneth M. Cowan, Arthur H. Hale | 1994-01-04 |