Controlled-polarization marine seismic shear-wave source

Coupling means for horizontal vibrator

Coupling means for horizontal vibrator

Coupling means for horizontal vibrator with tooth-like projectio

Debris ejector for a seismic vibrator

Deep water sound imploder

Determination of firing times of acoustic pulses

Determining the polarity of movement of an actuator mass in...

Device for applying pulsed radial stresses to the wall of a well

Device for emitting acoustic waves in a liquid medium

Device for emitting acoustic waves in a liquid medium by implosi

Device for emitting mechanical waves

Device for generating acoustic shear waves in the earth

Device for generating acoustic waves by implosion

Device for generating acoustic waves in a fluid by implosion

Device for generating acoustic waves in a liquid medium

Device for generating focused elastic waves in a material...

Device for generating in the ground both transverse and longitud

Device for generating seismic waves by striking a mass against a

Device for producing mechanical waves