MANUFACTURING METHOD OF CERAMIC PROPPANT, AND PROPPANT ITSELF Russian patent published in 2012 - IPC C09K8/80 C04B35/622 

FIELD: oil and gas industry.

SUBSTANCE: in manufacturing method of ceramic proppant including grinding of initial charge components, preparation of ceramic slurry, introduction to the obtained ceramic slurry of water-soluble polymer binding agent, formation of granules, their drying and calcination, components of initial charge are crushed to the fraction size of not more than 30 mcm at fraction content of not more than 5 mcm - 60-70 wt %, and fraction of 5-30 mcm - 30-40 wt %, formation of granules is performed by dispersion of ceramic slurry at least through one gauged opening to water solution of fixing substance forming together with water-soluble polymer binding agent the water-nonsoluble compound providing the fixation of granule shape, to ceramic slurry there introduced in addition is phosphoric sodium salt in the quantity of 0.03 - 0.5 wt % of the weight of solid ceramic slurry component. Ceramic proppant is characterised by the fact that it has been obtained with the above method. Invention is developed in dependent claims.

EFFECT: improving proppant package permeability.

4 cl, 2 ex, 1 tbl, 3 dwg