TUBULAR DEVICE WITH RADIOFREQUENCY COMMUNICATION FOR WELL HEAD

摘要

An element for a drill string comprises a body (600) with a generally axisymmetric appearance and a wave type communication device installed in said body (600). The communication device comprises a set of antennae (627) comprising a plurality of antennae distributed at the periphery of said body (600), about the axis of symmetry thereof, and capable of operating in transmission and in reception, operating electronics which are capable of organizing the transfer of data, in transmission and in reception, an actuator which is capable of selectively connecting the antennae of said set to the operating electronics, and an antenna monitor arranged to regularly evaluate a reception quality parameter for at least one sub-assembly of the set of antennae (627), to repetitively select one or more antennae of said set as a function of reception quality parameters derived from said sub-assembly and to command the actuator to connect the selected antenna or antennae to the operating electronics.