Technique for reducing whirling of a drill string
Total field imaging probe
Transducer arrangement
Transducer configuration having a multiple viewing position feat
Transducers coated with anechoic material for use in down...
Transmitter and receiver to radially scan the cementing conditio
Transmitter for sonic logging-while-drilling
Transmitting multiple borehole parameters in sonic logging
Tube-wave seismic imaging
Two-component acoustic borehole tool