Submergible marine seismic source

Suspended structure for coupling seismic sources to the walls of

Swept impact seismic technique and apparatus

Swinging-weight vibrator for seismic exploration

Synchronized acoustic source

Synchronized acoustic source

System and method for determining the distribution and orientati

System and method for eliminating wave form distortion in multi-

System and method for ignition of a gaseous or dispersed...

System and method for monitoring drill string characteristics du

System and method of protecting instruments from down-hole fluid

System and method of protecting optical elements from down-hole

System for acquiring geophysical data

System for generating a seismic signal in a borehole

System for imparting compressional and shear waves into the eart

System for imparting mechanical impulse energy to the ground

System for imparting mechanical impulse energy to the ground

System for transmitting energy through an apparatus usable for s

System intended for permanent installation of measuring...

Systems and methods for performing real time seismic surveys