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Acoustic transceiver with adjacent mass guided by membranes |
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2018-07-31 |
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Systems and methods for downhole cement evaluation |
— |
2017-11-21 |
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Using higher order harmonics to determine acoustic impedance of material behind borehole casings |
Andrew Hayman, Kenneth K. Liang |
2017-03-14 |
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Mechanical filter for acoustic telemetry repeater |
Stephane Vannuffelen, Christophe Rayssiguier |
2016-09-13 |
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Methods and apparatus to identify layer boundaries in subterranean formations |
Jahir Pabon, Henri-Pierre Valero |
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Using higher order harmonics to determine acoustic impedance of material behind borehole casings |
Andrew Hayman, Kenneth K. Liang |
2014-07-01 |
| 8750075 |
Acoustic transceiver with adjacent mass guided by membranes |
Christophe Rayssiguier |
2014-06-10 |
| 8689904 |
Detection of gas influx into a wellbore |
Richard Timothy Coates, Eric Lavruit |
2014-04-08 |
| 8605548 |
Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe |
— |
2013-12-10 |
| 7689362 |
Determining the impedance of material behind a casing in a borehole |
Emmanuel Legendre |
2010-03-30 |
| 7522471 |
Multimode acoustic imaging in cased wells |
Jean-Luc Le Calvez, Emmanuel Legendre, Smaine Zeroug |
2009-04-21 |
| 7345594 |
Noise attenuation apparatus for borehole telemetry |
Songming Huang, Franck Monmont |
2008-03-18 |
| 7149146 |
Determination of the impedance of a material behind a casing combining two sets of ultrasonic measurements |
Robert Van Kuijk, Jean-Luc Le Calvez |
2006-12-12 |
| 6536946 |
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Didier Dominguez |
2003-03-25 |
| 6526838 |
Ultrasonic fluid meter with improved resistance to parasitic ultrasound waves |
Eric Lavrut, Philippe Hocquet |
2003-03-04 |
| 6474439 |
Dipole logging tool |
David C. Hoyle, Hitoshi Tashiro, Alain Brie, Hiroshi Hori, Hitoshi Sugiyama +2 more |
2002-11-05 |
| 6119070 |
Method for acoustically measuring a fluid flow rate |
Lionel Beneteau |
2000-09-12 |
| 5969263 |
Ultrasonic fluid counter for attenuating parasitic ultrasonic waves |
Patrice Ligneul, Philippe Hocquet |
1999-10-19 |
| 5226018 |
Geophysical prospecting method using pseudo-random pulse sequences |
Chung Chang, Christopher Kimball |
1993-07-06 |
| 4951267 |
Method and apparatus for multipole acoustic logging |
Shu-Kong Chang, Gyula Varga |
1990-08-21 |
| 4661933 |
Method and apparatus for acoustically measuring the transverse dimensions of a borehole |
Bronislaw Seeman |
1987-04-28 |
