Downhole epicyclic motion orbital seismic source

Downhole hydraulic rotary seismic source

Downhole hydraulic seismic generator

Downhole liquid pressure seismic source and bit positioning syst

Downhole orbital seismic source

Downhole seismic array system

Downhole seismic energy source

Downhole seismic exploration device and apparatus

Downhole seismic source

Downhole seismic source

Downhole seismic sources

Dual mode multiple-element resonant cavity piezoceramic borehole

Elastic wave exploration tool for wells

Electro-hydraulic dipole vibrator

Electroacoustic transducer with mechanical impedance transformer

Electrodynamic transducer head

Enclosures for containing transducers and electronics on a...

Exciting method for logging by S wave

Finding distance to blowout using wellbore acoustic measurements

Flexcompressional acoustic transducer