Method and apparatus for determining real time liquid and gas phase flow rates
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United States of America Patent
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Jul 10, 2001
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N/A
app pub date -
Jan 13, 1999
filing date -
Jan 13, 1999
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Abstract
A method for determining real time liquid phase flow rate from a biphase stream includes the steps of: providing a stream of a biphase fluid including a gas phase having a known gas density and a liquid phase having a known liquid density; providing a separator having a known volume gradient corresponding to liquid level in the separator; feeding the stream to the separator so as to provide a separated liquid phase containing a portion or the gas phase as entrapped gas and a separated free gas phase in the separator; measuring density of the separated liquid phase; measuring change in level over time of the separated liquid phase in the separator; and determining a liquid phase flow rate from the change in level over time, the separated liquid phase density, the known gas density and the known liquid density.
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