FIELD: oil and gas industry.
SUBSTANCE: high-strength magnesium silicate proppant obtaining method that includes milling of the source mixture, its granulating and annealing of the obtained granules, milling of the source mixture with MgO content equal to 24-28 wt % is made up to the particle size of 8 mcm and less, and granulation process is made with water with added sodium or potassium salt of naphthalenesulphonic acid polymethylene or polycarboxymethylene of a sulphonic acid in quantity 0.02-0.07% of the mixture weight in terms of solid matter. The invention is developed in the secondary claims.
EFFECT: obtainment of a high-strength proppant of a medium density.
3 cl, 2 ex, 2 tbl
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