It is generally accepted that the 'Oilfield of the Future' will incorporate distributed permanent downhole seismic sensors in flowing wells. However the effectiveness of these sensors will be limited by the extent to which seismic signals can be discriminated, or de-coupled, from flow induced acoustic noise originating within the production tubing. A specialised test facility has been developed in order to understand and characterise the acoustic noise generated by fluid flow within a production borehole, with the goal of developing the next generation of seismic tools suitable for permanent deployment in flowing wells. By eliminating or reducing the signal contamination due to the flow, the noise floor of the system could be improved enabling smaller seismic signals to be resolved. This paper presents the test facility design and the results of both physical experiments and numerical modelling aimed at the management of flow induced acoustic noise for permanently deployed seismic sensors in flowing hydrocarbon wells.