MANUFACTURING METHOD OF MAGNESIUM-SILICATE PROPPANT, AND PROPPANT ITSELF Russian patent published in 2013 - IPC C09K8/80 C04B35/622 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil and gas industry, and namely to the manufacturing procedure of ceramic proppants intended to be used as propping agents at production of oil or gas using the formation hydraulic fracturing method - FHF. In the manufacturing method of magnesium-silicate proppant, which involves preparation of initial charge components, their grinding, granulation, annealing and sieving of annealed granules, granulation is carried out using the water containing at least one salt of sodium, potassium, magnesium and calcium from the group of water-soluble chlorides, sulphates and carbonates, in quantity of 18 - 38 g/l, at the following content of the above salts, g/l: sodium salts 13.3-30.0; magnesium salts 2.6-6.0; potassium salts 0.7-1.5; calcium salts 0.3-0.5. Magnesium-silicate proppant is characterised by the fact that it is obtained by means of the above method. Invention is developed in dependent claims.

EFFECT: increasing air brick strength; reducing dust content of proppant and improving the permeability of proppant pack.

6 cl, 1 tbl, 3 ex