Fluid driven torsional dipole seismic source
Focused planar transducer
Fracture detection using circumferential offset acoustic paths
Gas-gun for acoustic well sounding
Gas-gun for acoustic well sounding
High amplitude sound wave generator
Hydraulic release system for use in a borehole apparatus
Hydraulically-actuated downhole seismic source
Hydrogen-oxygen acoustic logging device
Large diameter borehole apparatus
Lightweight inflatable borehole receiver unit for seismic...
Locking arm for well tool
Logging method and apparatus using a sonde equipped with measuri
Logging method and apparatus using a sonde equipped with measuri
Logging method and device in well bores utilizing directional em
Logging tool housing with acoustic delay
Low frequency acoustic attenuator
Low frequency flextensional acoustic source for underwater use
Low frequency flextensional acoustic source for underwater use
Low impedance down-hole acoustic source for well logging