PUMP CONTROLLER WITH MULTIPHASE MEASUREMENT
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United States of America Patent
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Issued Date -
Oct 4, 2012
app pub date -
Apr 1, 2011
filing date -
Apr 1, 2011
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus for measuring phase flow rate of the components of a multiphase fluid in a conduit. A pumping system pumps out a multiphase fluid from a wellbore. At least one processor, which may also control the pump, is used to determine the total liquid flow rate over time. An optical phase fraction meter (e.g., an infrared filter photometer) is used to determine the real-time phase fraction of the components of the multiphase fluid. Algorithms are used to calculate the volumetric flow rates of the individual components of the multiphase fluid based upon the total liquid flow rate and the phase fraction. Embodiments of the present invention provide an inexpensive system capable of measuring real time water-to-oil ratios in mature fields, where the water-to-oil ratio is high and the oil per-well production is low.
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