Acoustic well logging system having multiplexed filter digitizin
Adaptive telemetry system for hostile environment well logging
Apparatus and method for logging wells while drilling
Battery conservation
Communications protocol for digital telemetry system
Communications protocol for digital telemetry system
Communications systems in a well
Device for transmitting to the surface the signal from a transmi
Downhole telemetry system having discrete multi-tone...
Downward communication in a borehole through drill string...
Drill string telemetry system
Drilling system with downhole apparatus for determining paramete
High data rate acoustic telemetry system using multipulse...
Low frequency electromagnetic telemetry system employing...
Method and apparatus for mud pulse telemetry
Method and apparatus using casing and tubing for transmitting da
Method and apparatus using casing for combined transmission of d
Method for transmitting data over logging cable
Multiplex submersible pump telemetry system
Noise tool and method