Patent ID: 6914538
Filing Date: 2005-07-05
Classification: E21B,G01V

Abstract:
1. A computer-controlled system to deliver power downhole into a borehole which comprises: a multiconductor logging cable configured to transport a power signal and a telemetry signal; a toolstring coupled to the multiconductor logging cable to receive the power signal, said toolstring including a voltage detector configured to measure a received voltage of the power signal to responsively provide said telemetry signal to the multiconductor logging cable; a programmable power supply coupled to the cable to provide said power signal; a telemetry receiver coupled to the cable to receive said telemetry signal, said telemetry receiver configured to convert said telemetry signal into a voltage measurement; and a computer coupled to the telemetry receiver to receive the voltage measurement and configured to control the programmable power supply to regulate the received voltage of the power signal.