FIELD: mining.
SUBSTANCE: methods for hydraulic fracturing of subsurface include the first stage, in process of which hydraulic fracturing fluid, which contains thickener, is pumped into well bore to make a crack in subsurface, the second stage, in process of which proppant is added into pumped hydraulic fracturing fluid to prevent crack closure, additionally agents are added into hydraulic fracturing fluid to form proppant clusters or to increase strength of proppant clusters, or to improve transporting capacity of hydraulic fracturing fluid.
EFFECT: formation of crack with high conductivity for reservoir fluid as a result of making strong proppant clusters that prevent crack closure, and channels providing for free flow of reservoir fluids.
67 cl, 4 dwg
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