FORMATION HYDRAULIC FRACTURING METHOD Russian patent published in 2012 - IPC E21B43/263 C09K8/64 

FIELD: oil and gas industry.

SUBSTANCE: method involves placing into the well interval at the hydraulic fracturing and above it of viscous working liquid with propping agent with fraction of 0.4-0.8 mm in the suspended state; placing in the well above viscous working liquid of process liquid with density of 1.3-2.0 g/cm³ and creation of cracks in the formation by means of viscous working liquid with the energy released during the charge burning. The charge is placed in the viscous working liquid zone. At that, the liquid including the following components per 1 m³ is used as viscous working liquid: biocide "Biolan" - 0.005-0.007 l; gelling agent "GPG-3" - 4-5 kg; borate binding agent "BS-1" - 3-4 l; surface active substance - destruction modifying agent "KhV" - 1-3 l; propping agent - 100-300 kg; water is the rest.

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.

3 cl, 1 ex