Seismic source system for use in water covered area

Seismic source using self-propelled projectile

Seismic source with no reaction mass

Seismic sources

Seismic switch for strong motion measurement

Seismic transducer baseplate and housing assembly

Seismic transducer construction

Seismic vibration source

Seismic vibrator and method for improving the output of a seismi

Seismic vibrator baseplate

Seismic vibrator baseplate

Seismic vibrator control system

Seismic vibrator controlled by directly detecting base plate...

Seismic vibrator support assembly

Seismic wave generation by a downhole source

Seismic wave measuring devices

Seismic well source

Self-propelled percussion unit and method of using same

Self-propelled percussion unit and method of using same

Sensor platform for use in seismic reflection surveys