COMBINED WATER CUT AND SALINITY METER USING AN ARRAY OF COAXIAL PROBES

摘要

Disclosed is a flow meter and method for measuring water cut and salinity of a multiphase mixture. The water-cut meter includes a conduit configured to receive the multiphase mixture, and a probe array configured to measure a cross-sectional area of the conduit. The probe array includes a plurality of coaxial probes connected in parallel. Optionally, the probe array is configured to operate at a single high frequency, for example, 1 to 3 GHz, to minimize conductivity loss relative to capacitance. The flow meter further includes a processor configured to transmit a signal to the probe array and to receive a reflected signal from the probe array using a single channel. The processor is further configured to calculate the water cut and the salinity of the multiphase mixture based on a single complex permittivity of the multiphase mixture calculated from the received reflected signal.