FIELD: oil and gas industry.
SUBSTANCE: invention relates to magnesium-containing ceramic proppants-proppants intended for use in the oil industry as proppants in production of oil by hydraulic fracturing-fracturing. Ceramic proppant, which is a solid burned granule based on magnesium, silicon and iron oxides at any ratio, further contains a combination of alumina, potassium, sodium, calcium, chromium oxides in the following ratio, by weight: aluminum oxide 0.1–5.0, potassium oxide, 0.1–2.0, sodium oxide 0.1–2.0, calcium oxide 0.1 to 3.0, chromium oxide 0.1–1.0, indicated base is the rest.
EFFECT: technical result is reduction in degradation of strength in time.
1 cl, 3 ex, 1 tbl
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