FIELD: oil and gas industry.
SUBSTANCE: method includes grinding of preliminary treated feed stock based on natural silica and feldspar sand and serpentine rock, its granulating and sintering; during grinding low-melting red-burning clay is added additionally to the feed stock with the following ratio of components, % by weight: silica and feldspar sand - 70-90, serpentine rock - 5-15, red-burning clay - 5-15, at that the clay is dried preliminary at temperature of 200-400°C and sintering of granules is made at temperature of 1100-1200°C. The invention is well-developed in the subclaim.
EFFECT: increased strength of proppant.
2 cl, 2 ex, 2 tbl
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