METHOD FOR DETERMINING THE GEOMETRY OF HYDRAULIC FRACTURING TAKING INTO ACCOUNT THE SEPARATION AND INTERACTION OF HYDRAULIC FRACTURING FLUID FLOWS BETWEEN FRACTURES Russian patent published in 2022 - IPC E21B43/267 

FIELD: hydrocarbon production technologies.

SUBSTANCE: invention relates to the field of hydrocarbon production technologies, in particular to the optimization of parameters that directly affect the increase in well productivity during hydraulic fracturing. According to the method, well data and reservoir data are obtained. Specify data on hydraulic fracturing fluid, proppant data, data on acids, data on hydraulic fracturing. Using well data, hydraulic fracturing fluid data, proppant data, hydraulic fracturing data, the movement of the hydraulic fracturing fluid in the well is determined, at which the total flow rate of the hydraulic fracturing fluid with acid and proppant, the proppant concentration in the perforation zone of the well, and the temperature of the hydraulic fracturing fluid in the perforation zone are determined. well zone. A pattern of hydraulic fracture growth is formed as a result of iterative changes in hydraulic fracturing fluid data and/or proppant data and/or acid data and/or hydraulic fracturing data, and the maximum conductivity of hydraulic fractures is determined. At the same time: the distribution of hydraulic fracturing fluid flows with acid and the distribution of proppants in fractures are determined. Fracture opening and hydraulic fracturing fluid pressure with proppant and acid are determined. The position and velocity of the crack front are determined. The distribution of the concentration of hydraulic fracturing fluid and proppant in the hydraulic fracture, the temperature of the hydraulic fracturing fluid in the fracture, the thickness of the rock that reacted with the acid are determined. The fields of additional compressive stresses are determined for each crack. Hydraulic fracturing is carried out on the well according to the optimal data on the hydraulic fracturing fluid, the optimal data on the proppant, the optimal data on the acids and the optimal data on the hydraulic fracturing, obtained during the formation of the hydraulic fracture growth pattern and corresponding to the maximum conductivity of the hydraulic fractures.

EFFECT: obtaining the most optimal parameters for hydraulic fracturing to increase hydrocarbon production and increase well flow rates at the field, ensuring hydraulic fracturing.

10 cl, 22 dwg