| 8593910 |
Permanent seismic source |
— |
2013-11-26 |
| 7420879 |
Device for seismic emission in an underground formation and method for implementing same |
Frederic Huguet, Julien Meunier |
2008-09-02 |
| 7325647 |
Mobile system for seismic emission with fixed coupling devices, and method therefor |
Axelle Baroni |
2008-02-05 |
| 7104357 |
Device for generating focused elastic waves in a material medium such as underground, and method using same |
Axelle Baroni |
2006-09-12 |
| 6932185 |
Acquisition method and device for seismic exploration of a geologic formation by permanent receivers set on the sea bottom |
Renate Bary |
2005-08-23 |
| 6754136 |
Hydrophone with automatic inhibition in case an adjustable immersion threshold is exceeded |
Georges Constantinou, Axelle Baroni |
2004-06-22 |
| 6595285 |
Method and device for emitting radial seismic waves in a material medium by electromagnetic induction |
Jean-Claude Dubois |
2003-07-22 |
| 6412592 |
Electrically inclination compensated device for picking up elastic waves |
— |
2002-07-02 |
| 6338394 |
Compact vibrator and seismic monitoring or prospecting method using such a vibrator |
— |
2002-01-15 |
| 6289985 |
System intended for permanent installation of measuring sondes against the inner wall of a pipe |
— |
2001-09-18 |
| 6173804 |
System intended for permanent installation of measuring sondes in a pipe by means of a fluid pressure-actuated removable lock |
— |
2001-01-16 |
| 6089345 |
Elastic wave exploration tool for wells |
Charles Naville, Sylvain Serbutoviez |
2000-07-18 |
| 6023444 |
Method and device for the acquisition of signals while drilling |
Charles Naville, Claude Mabile, Jean Guesnon |
2000-02-08 |
| 5810080 |
Device for exploring an underground formation crossed by a horizontal well comprising several anchorable sondes |
— |
1998-09-22 |
| 5801642 |
Device for exploring an underground formation crossed by a horizontal well comprising several sensors permanently coupled with the wall |
— |
1998-09-01 |
| 5769163 |
Adjustable flexibility anchor device with retractable arms for well tools |
— |
1998-06-23 |
| 5550785 |
Mobile seismic system of great length for wells |
Jean Laurent, Jacques Cretin, Claude Beauducel |
1996-08-27 |
| 5355952 |
Method and device for establishing an intermittent electric connection with a stationary tool in a well |
— |
1994-10-18 |
| 5135072 |
Vibrating seismic source usable notably in wells |
— |
1992-08-04 |
| 5115881 |
Anti-bounce device for a mass striking a target element |
— |
1992-05-26 |
| 5111903 |
Signal receiving system able to be coupled with the wall of a well or drilling |
— |
1992-05-12 |
| 5035297 |
Anti-bounce device for a mass striking a target element |
— |
1991-07-30 |
| 4928784 |
Anti-bounce device for preventing the multiple shocks of a moving mass after a first impact against another element |
— |
1990-05-29 |
| 4923030 |
Device for generating acoustic waves by causing a falling mass to strike a target element coupled with the walls of a well |
— |
1990-05-08 |