Monitoring characteristics of a well fluid flow

摘要

An apparatus for use in a subterranean well includes a valve, a transducer and a circuit. The valve is adapted to propagate acoustic energy in response to a well fluid flow contacting the valve. The transducer is acoustically coupled to the valve and isolated from the flow to furnish an indication of the acoustic energy. The circuit is adapted to furnish signals to transmit stimuli indicative of the characteristic to a surface of the well based on the indication furnished by the transducer.