Volumetric control for proppant concentration in hydraulic fracturing
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United States of America Patent
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Feb 13, 2024
Grant Date -
Jul 29, 2021
app pub date -
Jul 31, 2018
filing date -
Jul 31, 2018
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Abstract
Methods and systems for controlling proppant concentration in a hydraulic fracturing slurry include measuring volumetric flow rates of fracturing fluid input to a blender and hydraulic fracturing slurry output from the blender, using these measured values to calculate a volumetric flow rate of proppant input, a slurry density and/or a slurry volume fraction, adjusting first and second valves to control rates of fluid and proppant delivery to the blender and re-measuring the volumetric flow rates and recalculating until target values of volumetric flow rate of proppant input, slurry density and/or slurry volume fraction are achieved.
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