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
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.
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1. A flow meter for measuring water cut and salinity of a multiphase mixture, the flow meter comprising: a conduit configured to receive the multiphase mixture;a probe array configured to measure a cross-sectional area of the conduit, wherein the probe array comprises a plurality of coaxial probes c
1. A flow meter for measuring water cut and salinity of a multiphase mixture, the flow meter comprising: a conduit configured to receive the multiphase mixture;a probe array configured to measure a cross-sectional area of the conduit, wherein the probe array comprises a plurality of coaxial probes connected in parallel; anda single processor configured to transmit a single signal to the probe array and to receive a single reflected signal from the probe array using a single channel between the probe array and the single processor,wherein each of the plurality of coaxial probes is configured to receive the single transmitted signal,wherein each of the plurality of coaxial probes connected in parallel is configured to measure a single impedance characteristic of a same type across the cross-sectional area of the conduit based on the received single transmitted signal,wherein the single reflected signal received from the probe array comprises a single measured signal generated from combining each of the measured impedance characteristics from the plurality of coaxial probes connected in parallel, andwherein the single processor is 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. 2. The flow meter of claim 1, wherein the probe array is further configured to operate at a single high frequency of excitation to minimize conductivity loss relative to capacitance. 3. The flow meter of claim 2, wherein the probe array is further configured to operate at the frequency ranging from 1 to 3 gigahertz. 4. The flow meter of claim 1, wherein the single processor is further configured to adjust a propagation delay through the probe array. 5. The flow meter of claim 1, wherein the single processor is further configured to measure scattering parameters in the received single reflected signal. 6. The flow meter of claim 1, wherein the single processor is further configured to calculate the water cut and the salinity of the multiphase mixture based on the single complex permittivity, wherein the single complex permittivity is an average permittivity of the multiphase mixture measured by the plurality of coaxial probes. 7. The flow meter of claim 1, wherein the single processor is further configured to calculate a capacitance and a conductivity of the multiphase mixture based on a real component and an imaginary component, respectively, of the single complex permittivity of the multiphase mixture. 8. The flow meter of claim 7, wherein the single processor is further configured to calculate the water cut and the salinity of the multiphase mixture based on the capacitance and the conductivity, respectively, of the multiphase mixture. 9. The flow meter of claim 7, wherein the capacitance and the conductivity of the multiphase mixture are an average capacitance and an average conductivity, respectively, of the multiphase mixture measured by the plurality of coaxial probes. 10. The flow meter of claim 1, wherein the conduit comprises a metallic material. 11. The flow meter of claim 1, wherein each of the coaxial probes measures a measurement area that is smaller than the cross-sectional area of the conduit. 12. The flow meter of claim 1, wherein the probe array comprises a separator configured to space the plurality of coaxial probes across the cross-sectional area of the conduit. 13. The flow meter of claim 12, wherein the separator is further configured to space the plurality of coaxial probes across the cross-sectional area of the conduit based on a length scale of a multiphase phenomenon that the probe array is measuring. 14. A method for measuring water cut and salinity of a multiphase mixture, the method comprising: receiving, using a conduit, the multiphase mixture;measuring, using a probe array, a cross-sectional area of the conduit, wherein the probe array comprises a plurality of coaxial probes connected in parallel;transmitting, using a single processor, a single signal to the probe array and receiving a single reflected signal from the probe array using a single channel between the probe array and the single processor; andcalculating, using the single processor, the water cut and the salinity of the multiphase mixture based on a single complex permittivity of the multiphase mixture calculated from the received single reflected signal,wherein each of the plurality of coaxial probes is configured to receive the single transmitted signal,wherein each of the plurality of coaxial probes connected in parallel is configured to measure a single impedance characteristic of a same type across the cross-sectional area of the conduit based on the received single transmitted signal, andwherein the single reflected signal received from the probe array comprises a single measured signal generated from combining each of the measured impedance characteristics from the plurality of coaxial probes connected in parallel. 15. The method of claim 14, wherein the step of measuring comprises measuring the cross-sectional area of the conduit at a frequency ranging from 1 to 3 gigahertz. 16. The method of claim 14, further comprising: adjusting a propagation delay through the probe array. 17. The method of claim 14, wherein the step of calculating comprises calculating the water cut and the salinity of the multiphase mixture based on the single complex permittivity, wherein the single complex permittivity is an average permittivity of the multiphase mixture measured by the plurality of coaxial probes. 18. The method of claim 14, further comprising: calculating a capacitance and a conductivity of the multiphase mixture based on a real component and an imaginary component, respectively, of the single complex permittivity of the multiphase mixture. 19. The method of claim 18, further comprising: calculating the water cut and the salinity of the multiphase mixture based on the capacitance and the conductivity, respectively, of the multiphase mixture. 20. The method of claim 18, wherein the capacitance and the conductivity of the multiphase mixture are an average capacitance and an average conductivity, respectively, of the multiphase mixture measured by the plurality of coaxial probes.
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