IMPROVEMENTS IN OR RELATING TO DATA COMMUNICATION IN WELLBORES

摘要

Method and apparatus to allow continuous recovery and broadcast of data and commands to and from a tubular string (32) through all phases of drilling and completion running in a wellbore. A RF transceiver (76 /74) is located on the tubular string, the transceiver being adapted to receive signals and broadcast the signals, and a RF transceiver (88 / 90) 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. RF transmission through the wellbore using distributed RF transceivers providing data and command transmission up and down the tubing string.