Method and apparatus for monitoring multiphase fluid flow
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United States of America Patent
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May 28, 2013
Grant Date -
Dec 2, 2010
app pub date -
May 26, 2010
filing date -
May 26, 2009
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Abstract
A method and apparatus for monitoring multiphase fluid flow passing within a pipe is provided. The method includes the steps of: a) providing a flow pressure value and a flow temperature value for the multiphase fluid flow within the pipe; b) providing a fluid flowmeter operable to be attached to an exterior of the pipe, the flowmeter including a spatial array of at least two sensors disposed at different axial positions along the pipe, which flowmeter is adapted to produce flow velocity signals indicative of a velocity of the fluid flow traveling within the pipe; c) providing a processor adapted to include an equation of state model for the pressure, volume, and temperature properties for the multiphase fluid flow, and further adapted to receive composition data values for the multiphase fluid flow, the flow pressure value, and the flow temperature value, and the flow velocity signals from the flowmeter; and d) determining a volumetric flow rate of one or both the gas phase and liquid phase of the fluid flow.
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