Proppant particles formed from slurry droplets and method of use
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United States of America Patent
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Nov 11, 2014
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app pub date -
Sep 10, 2012
filing date -
Mar 11, 2011
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Abstract
Proppant material for hydraulic fracturing is provided. The particles of the proppant are formed by drip casting. A slurry of finely divided ceramic particles is flowed through nozzles and formed into droplets under the influence of vibration. Uniform sized, smooth surface, spherical green particles are formed. The green particles are dried and sintered to form the proppant. The proppant is used in the process of hydraulic fracturing of wells.
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