Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750180 | Borehole fluid containing a lubricating composition—method for verifying the lubrification of a borehole fluid—application with respect to fluids with a high ph | Jean-Francois Argillier, André Demoulin, Annie Audibert-Hayet | 2004-06-15 |
| 6740625 | Method and fluid for checking the saturation of a formation in the immediate vicinity of a well | Annie Audibert, Jean-Francois Argillier, Daniel Longeron, Carine Dewattines | 2004-05-25 |