Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11230914 | Systems and methods for determining and/or using estimate of drilling efficiency | Maurice Ringer, Charles Toussaint | 2022-01-25 |
| 5881811 | Modeling of interactions between wells based on produced watercut | Didier Pavone | 1999-03-16 |
| 5351534 | Method and device for production logging in a gushing well | — | 1994-10-04 |
| 5348094 | Device and method for pumping a viscous liquid comprising injecting a thinning product, application to horizontal wells | Henri Cholet | 1994-09-20 |
| 5269376 | Method for favoring the production of effluents of a producing zone | Claude Gadelle | 1993-12-14 |
| 5242021 | Method and device for consolidation a formation crossed by a well | Claude Gadelle | 1993-09-07 |
| 5214252 | Logging method and device in well bores utilizing directional emission and/or reception means | Jean-Luc Mari, Pierre Gaudiani | 1993-05-25 |
| 5211240 | Method for favoring the injection of fluids in producing zone | Claude Gadelle, Herve Petit | 1993-05-18 |
| 5207096 | Advanced method and device for improving the production logs of an activated nonflowing well | Yvon Castel | 1993-05-04 |
| 5150750 | Device for activating and measuring nonflowing producing wells | Christian Wittrisch | 1992-09-29 |
| 5133411 | Method and device for stimulating a subterranean zone through the controlled injection of a fluid coming from a neighbouring zone which is connected to the subterranean zone by a drain | Claude Gadelle, Gerard Renard | 1992-07-28 |
| 5133410 | Method and device for stimulating production of a subterranean zone of injection of a fluid from a neighboring zone via fracture made from a deflected drain drilled in an intermediate layer separating the zones | Claude Gadelle, Gerard Renard | 1992-07-28 |
| 5042297 | Well-logging process and device in a non-flowing production well | — | 1991-08-27 |
| 5038108 | Determing parameters of a geological environment | Christian Wittrisch | 1991-08-06 |
| 5014440 | Device and method for measuring the deformations of a sample | Philippe Perreau, Daniel Bary, Guy Grard | 1991-05-14 |
| 5009512 | Device and method for measuring the deformations of a sample | Philippe Perreau, Daniel Bary, Guy Grard | 1991-04-23 |
| 4945995 | Process and device for hydraulically and selectively controlling at least two tools or instruments of a valve device allowing implementation of the method of using said device | Michel Tholance, Jean-Paul Michel | 1990-08-07 |
| 4945761 | Method and device for transmitting data by cable and mud waves | Pierre Morin | 1990-08-07 |
| 4942926 | Device and method for carrying out operations and/or manipulations in a well | — | 1990-07-24 |
| 4940094 | Method and device to actuate specialized intervention equipment in a drilled well having at least one section highly slanted with respect to a vertical line | Michel Tholance | 1990-07-10 |
| 4683950 | Process for hydraulically fracturing a geological formation along a predetermined direction | — | 1987-08-04 |