US Patent 7036591 Low density proppant
Patent 7036591 was granted and assigned to Carbo Ceramics Inc. on May, 2006 by the United States Patent and Trademark Office.
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Patent abstract
A low density, spherical proppant made from kaolin clay having an alumina content distributed homogeneously throughout the pellets, an apparent specific gravity of from about 1.60 to about 2.10 g/cc, and a bulk density of from about 0.95 to about 1.30 g/cc. The low density is achieved by controlling the time and temperature of the firing process to be from about 1200 to about 1350° C. This low density proppant is useful in hydraulic fracturing of shallow oil and gas wells.
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Patent Inventor Names
Chad D. Cannan0
Thomas C. Palamara0
Date of Patent
May 2, 2006
0Patent Application Number
102681690
Date Filed
October 10, 2002
0Patent Primary Examiner
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US Patent 7036591 Low density proppant
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