Measuring and testing – Volume or rate of flow – Using differential pressure
Reexamination Certificate
2006-12-18
2009-12-01
Thompson, Jewel (Department: 2855)
Measuring and testing
Volume or rate of flow
Using differential pressure
Reexamination Certificate
active
07624652
ABSTRACT:
A method for determining the flow rates of a fluid comprising a multi-component mixture of a gas and at least one liquid in a pipe, the method comprising the following steps: a) the multi-component mixture flow is conditioned to create a symmetrical annular gas concentration flow condition, b) the density distribution and/or dielectric constant distribution in said symmetrical flow within a cross-section of the pipe is determined, c) a function describing the radial distribution of density and/or radial distribution of dielectric constant is determined, d) the velocity of the multi-component mixture is determined, e) the temperature and pressure are obtained, and, f) based on the knowledge of densities and/or dielectric constants of the components of the fluid mixture, and the result from the above steps a-e, the volume and/or mass flow rates of the gas and liquid components of the fluid mixture are calculated. An apparatus for performing the method is also disclosed.
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Search Report issued by Norwegian Patent Office for priority Norwegian application 2006 2028.
Skjaeldal Ingve Morten
Wee Arnstein
Frommer & Lawrence & Haug LLP
Multi Phase Meters AS
Santucci Ronald R.
Thompson Jewel
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