METHOD OF HYDROCARBON RESERVOIR FRACTURING Russian patent published in 2018 - IPC E21B43/26 C09K8/62 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry and can be used to increase the productivity of both newly commissioned and operating production and injection wells. To perform hydraulic fracturing of the formation, a fracturing fluid is injected into the well bore in the formation under high pressure. Then a fracturing fluid suspension is injected into the formed well and the fracture, mixed with proppant particles, the suspension having a consistency index above 0.1 Pa⋅sⁿ₂ at the flow index n₂ < 1 and the yield strength is above 5 Pa. Then, injection of a spinning liquid with a flow index n₁ ≤ 1 and the consistency index below 0.01 P⋅sⁿ₁.

EFFECT: achieved technical result is reduced risk of fracture closure when the volume of the drilling fluid is limited.

5 cl, 3 dwg, 1 tbl