METHOD OF OBTAINING PROPPANT (VERSIONS) AND METHOD OF HYDRAULIC FRACTURING OF STRATUM WITH APPLICATION OF OBTAINED PROPPANT (VERSIONS) Russian patent published in 2014 - IPC C04B35/10 E21B43/267 

FIELD: chemistry.

SUBSTANCE: invention relates to ceramic proppant and to method of its manufacturing, as well as to method of hydraulic fractioning of stratum. Ceramic proppant includes multiple sintered spherical granules and is manufactured from raw material mixture, which contains first component, selected from aluminium oxide, source of aluminium oxide, second component, which is boron source, and third component, selected from group, consisting of wollastonites, magnesium silicates, olivines, silicon dioxides, silicon carbides, silicon nitrides, as well as compounds of calcium, potassium, sodium, barium, iron, zinc, lithium, ammonium in form of oxides, chlorides, nitrides, nitrites, carbides, carbonates, hydrocarbonates, fluorides, fluorites, sulfates, phosphates, and dolomites, titanium oxides, calcium carbides; and their mixtures, with weight ratio of aluminium oxide/boron oxide in proppant in dry state constituting from approximately 98:30 to approximately 70:2, and apparent density of proppant constitutes 0.2-2.2 g/cm³.

EFFECT: reduction of density and increase of destruction stability of proppant.

15 cl, 5 ex, 1 tbl