METHOD OF PREPARING MAGNESIUM-SILICATE PROPLANTS Russian patent published in 2008 - IPC C09K8/80 C04B35/20 

FIELD: oil and gas industry .

SUBSTANCE: invention refers to production of proplants employed in oil producing industry at extraction of oil by method of hydraulic break-down of formation. The method of preparation of magnesium-silicate proplants employed in production of oil by the method of hydraulic break-down of a formation consists in thermo-treatment and crumbling of source raw material, in granulating and roasting produced granules, in additional heating granules to the temperature of 50-70°C, in applying during their mixing in a mixer a silicone sealant poly(oxi(dimethylsilane) with neutral hardening type at weight of 0.4-1.5% from weight of granules, in successive introducing water into the mixer at 0.03-0.06% weight from weight of granules and conditioning till hydrophobic coating hardens.

EFFECT: upgraded permeability of proplants layer due to reduced impact resistance and increased hydrophobic behavior and degree of roundedness.

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