Receiver for an acoustic telemetry system

Receiving apparatus

Reducing injection loss in drill strings

Redundant downhole production well control system and method

Remote actuation of downhole tools using vibration

Remote control for a plug-dropping head

Remote instrumentation apparatus

Remote sensor processing system and method

Remote switch position determination using constant current sign

Remotely operated downhole switching apparatus

Repeatable reference for positioning sensors and transducers...

Reservoir management system and method

Reservoir management system and method

Reservoir management system and method

Reservoir monitoring through windowed casing joint

Resonant acoustic transmitter apparatus and method for...

Retractable electrical/optical connector

Retractable sensor system and technique

Retrievable subsurface nuclear logging system

RF communication with downhole equipment