| 9097815 |
Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources |
— |
2015-08-04 |
| 8649992 |
Method for reducing induction noise in towed marine electromagnetic survey signals |
Richard Graeme Carson |
2014-02-11 |
| 8427901 |
Combined impulsive and non-impulsive seismic sources |
Nils Lunde, Gregory Ernest Parkes |
2013-04-23 |
| 8427165 |
Marine EM exploration |
— |
2013-04-23 |
| 8274288 |
Multi-transient DC resistivity measurements |
Bruce Alan Hobbs |
2012-09-25 |
| 8258791 |
Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources to impart electromagnetic signals into a subsurface formation and thereby determining a formation response to each signal |
— |
2012-09-04 |
| 8143897 |
Short-offset transient electromagnetic geophysical surveying |
— |
2012-03-27 |
| 8131522 |
Method for estimating and removing air wave response in marine electromagnetic surveying |
David A. Wright |
2012-03-06 |
| 8063642 |
Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources |
— |
2011-11-22 |
| 7795873 |
Method for attenuating air wave response in marine electromagnetic surveying |
David A. Wright |
2010-09-14 |
| 6914433 |
Detection of subsurface resistivity contrasts with application to location of fluids |
David A. Wright, Bruce Alan Hobbs |
2005-07-05 |
| 6081765 |
Signatures of marine seismic sources |
— |
2000-06-27 |
| 4868794 |
Method of accumulation data for use in determining the signatures of arrays of marine seismic sources |
Leslie Hatton, Gregory E. Parkes, Tor-Avid Haugland |
1989-09-19 |
| 4644507 |
Scaling of sound source signatures in underwater seismic exploration |
— |
1987-02-17 |
| 4500978 |
Seismographic method and apparatus using scaled sound sources |
William E. Lerwill |
1985-02-19 |
| 4476550 |
Determination of far field signatures, for instance of seismic sources |
Paul L. Stoffa |
1984-10-09 |
| 4476553 |
Method of determining the signatures of arrays of marine seismic sources |
Leslie Hatton, Gregory E. Parkes, Tor-Arvid Haugland |
1984-10-09 |
| 4326271 |
Method and apparatus for determining acoustic properties in the earth |
— |
1982-04-20 |