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:
Nov. 03, 2015
Filed:
Mar. 11, 2011
Benjamin T. Eldred, Houston, TX (US);
Brett A. Wilson, Cypress, TX (US);
Clayton F. Gardinier, Houston, TX (US);
Robert J. Duenckel, Southlake, TX (US);
Benjamin T. Eldred, Houston, TX (US);
Brett A. Wilson, Cypress, TX (US);
Clayton F. Gardinier, Houston, TX (US);
Robert J. Duenckel, Southlake, TX (US);
CARBO Ceramics Inc., Houston, TX (US);
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.