Method and system for continuous remote monitoring of the integrity of pressurized pipelines and properties of the fluids transported

Method for remote monitoring of the integrity of pressurized pipelines (104) and properties of the fluids transported to be used with gas and oil pipelines, by - installing a plurality of measurement stations (103) along the pipeline, connected to vibroacoustic sensors (101) for measuring elastic signals propagating in the walls of the pipeline, and acoustic signals propagating in said transported fluid; - transmitting measured signals to a central unit (102) for - calculating a plurality of transfer functions H(f) for defining the vibroacoustic propagation in sections of the pipeline (104) between consecutive measurement stations (103) using said measured signals and their relative Fourier transforms; - continuously updating said transfer functions H(f) using acoustic and elastic signals generated by passive sources (T) present along the pipeline (104); - filtering the relevant acoustic and elastic signals from the different measurement stations (103), subtracting the contribution relating to the passive sources (T) and - creating a descriptive model of the system comprising the fluid transported, pipeline and external medium surrounding the pipeline itself, using said transfer functions H(f) connected with each other.