FORMATION HYDRAULIC FRACTURING METHOD USING "KHIMEKO" COMPLEX Russian patent published in 2012 - IPC E21B43/263 

FIELD: oil and gas industry.

SUBSTANCE: formation hydraulic fracturing method involving placement into the well interval at the depth of the planned hydraulic fracturing and above it of water-based gel of "Khimeko-V" complex with strong granular substance with fraction of 0.4-0.8 mm in the suspended state; placement in the well above the above said water-based gel of process liquid with density of 1.8-2.0 g/cm³; reduction of the level of well liquid to the level of 150-190 m from the well head, sealing of well head with possibility of liquid flow throttling and creation of cracks in the formation by means of water-based gel of "Khimeko-V" complex with the energy released at combustion of the charge placed in water-based gel zone of "Khimeko-V" complex and against geological differences of formation rocks and/or their disturbances; at that, total volume of water-based gel of "Khimeko-V" complex is assumed on the basis of 0.3-0.4 m³ per 1 running metre of effective thickness of the formation.

EFFECT: increasing intensification effect of the product inflow from the formation owing to reducing the charge energy losses, increasing the operating safety and improving the effect of stable formation drainage in time.

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