The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2017
Filed:
Aug. 01, 2014
Imerys Oilfield Minerals, Inc., Roswell, GA (US);
Donald Allen Anschutz, Huffman, TX (US);
Michael Burgess, Milledgeville, GA (US);
Robert J. Pruett, Milledgeville, GA (US);
IMERYS OILFIELDS MINERALS, INC., Roswell, GA (US);
Abstract
A method of making a sintered ceramic proppant may include providing a kaolin clay. The kaolin clay may include an AlOcontent no greater than about 46% by weight, and a KO content no greater than 0.1% by weight. The kaolin clay may have a particle size distribution such that greater than 70% of the particles have an equivalent spherical diameter of less than 0.5 microns as measured by Sedigraph, and a shape factor less than about 18. The method may further include blunging the kaolin clay, agglomerating the kaolin clay, and sintering the agglomerated kaolin clay to produce a sintered ceramic proppant. The kaolin clay may have an A-bob Hercules viscosity of at least about 3,300 rpm at 18 kilodyne-cm and 70% solids.