Systems and methods for measuring an interface level in a multi-phase fluid composition
First Claim
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1. A system comprising:
- a vessel system for a fluid;
a sampling assembly; and
a resonant sensor system comprised of at least an electrically resonant transducer coupled to the sampling assembly, wherein the resonant sensor system measures values of real and imaginary parts of an impedance spectra associated with the electrically resonant transducer while proximate to the fluid and the measured values of real and imaginary parts of the impedance spectra associated with the electrically resonant transducer while proximate to the fluid are each independently used to determine a composition of the fluid, and wherein the resonant sensor system is configured to determine a fluid phase inversion point.
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Abstract
A system includes a vessel system for a fluid, a sampling assembly and a resonant sensor system coupled to the sampling assembly. The resonant sensor system may include a subsystem that detects a set of signals from a resonant sensor system at a plurality of locations in the vessel. The resonant sensor system may also include a subsystem that converts the set of signals to values of a complex impedance spectrum for the plurality of locations and stores the values of the complex impedance spectrum and frequency values. A subsystem determines a fluid phase inversion point from the values of the complex impedance spectrum.
26 Citations
25 Claims
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1. A system comprising:
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a vessel system for a fluid; a sampling assembly; and a resonant sensor system comprised of at least an electrically resonant transducer coupled to the sampling assembly, wherein the resonant sensor system measures values of real and imaginary parts of an impedance spectra associated with the electrically resonant transducer while proximate to the fluid and the measured values of real and imaginary parts of the impedance spectra associated with the electrically resonant transducer while proximate to the fluid are each independently used to determine a composition of the fluid, and wherein the resonant sensor system is configured to determine a fluid phase inversion point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for measuring a level of a mixture of fluids in a vessel, the method comprising:
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detecting a set of signals from a resonant sensor system at a plurality of locations in the vessel, wherein the resonant sensor system comprises at least an electrically resonant transducer; converting the set of signals to values of real and imaginary parts of the impedance spectra for the plurality of locations; storing the values of the real and imaginary parts of the impedance spectra and frequency values; and determining a fluid phase inversion point from the independent values of the real and imaginary parts of the impedance spectra. - View Dependent Claims (10, 11, 12)
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13. A method for determining a composition of a mixture of oil and water in a vessel comprising:
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determining a set of complex impedance spectrum values and conductivity values of the mixture of oil and water as a function of a height in the vessel with an electrically resonant transducer, wherein the set of complex impedance spectrum values and conductivity values include real and imaginary parts of the impedance spectra; determining a fluid phase inversion point from each of the independent values of real and imaginary parts of the impedance spectra; applying an oil phase model to the set of complex impedance spectrum values, and conductivity values above the fluid phase inversion point; and applying a water phase model to the set of complex impedance spectrum values and conductivity values below the fluid phase inversion point. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for determining a composition of a mixture of a first fluid and a second fluid in a vessel comprising:
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determining, with a sensor system, a set of complex impedance spectrum values of the mixture of the first fluid and the second fluid as a function of a height in the vessel, wherein the set of complex impedance spectrum values include real and imaginary parts of the impedance spectra; determining a fluid phase inversion point from the independent values of the real and imaginary parts of the impedance spectra; applying a phase model of the first fluid to the set of complex impedance spectrum values above the fluid phase inversion point; and applying a phase model of the second fluid to the set of complex impedance spectrum values below the fluid phase inversion point. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification