OBC location system
Obtaining an image of an underground formation
Ocean bottom seismic station
Ocean bottom seisometer
Off-shore seismic prospection method using a coded vibratory sig
Offset transformation to zero dip that preserves angle of...
Offshore seismic prospecting method using a hydrophone-geophone
Oil fill procedure for seismic marine streamer
Oil well acoustic logging tool with baffles forming an...
On-bottom seismometer electronic system
One step inversion/separation scheme using a plurality of vibrat
One-return wave equation migration
One-return wave equation migration
Optical methods and systems in marine seismic surveying
Optical transmission of digital seismic data
Optimizing a seismic survey for source separation
Orientation and calibration of acoustic vector sensor arrays
Over power supply voltage cut-off circuit