Patent ID: 7163065
Filing Date: 2007-01-16
Classification: E21B

Abstract:
1. A combined telemetry system for communicating a signal between multiple positions in a wellbore comprising: a lower sub-telemetry system, the lower sub-telemetry system coupled at one end to a sensor; an upper sub-telemetry system, the upper sub-telemetry system coupled at one end to another end of the lower sub-telemetry system and coupled at another end to at least one of a signal receiver and a signal transmitter; and a signal converter coupled between the upper sub-telemetry system and the lower sub-telemetry system for converting one type of signal communicated through at least one of the lower sub-telemetry system and the upper sub-telemetry system to another type of signal communicated through at least one of the upper sub-telemetry system and the lower sub-telemetry system.