Improvements in or relating to data communication in wellbores

摘要

A method and apparatus is described which allows continuous recovery and broadcast of data and commands to and from a tubing string 32 through all phases of drilling and completion running in a wellbore. A RF transceiver 98 is located on the tubular string, the transceiver being adapted to receive signals and broadcast the signals, and a RF transceiver 98 is located remote from the tubular string and adapted to receive the broadcasted signal by virtue of an antenna 92 arranged within a fluid filled annulus 60 around the tubular string 32.