METHOD FOR STIMULATING THE INFLOW OF GAS WELLS Russian patent published in 2023 - IPC E21B43/25 E21B43/12 E21B43/16 E21B47/00 

FIELD: gas industry.

SUBSTANCE: invention relates to the field of the gas industry, in particular to methods for increasing the productivity factor in production wells, and can be used to stimulate the inflow of gas wells from fields and underground gas storage facilities, both newly drilled and in operation. In the method, the core is used to determine the strength properties of the rock in the bottomhole zone of the reservoir and conduct a series of gas-dynamic studies (GDS) on a gas well in stationary modes. A drawdown is created on the reservoir, leading to rock cracking and the appearance of an artificial system of macrocracks in the reservoir, by blowing a gas well through a valve control device (VCD) without releasing and losing gas into the atmosphere into the common reservoir of an underground gas storage. The value of the indicated drawdown on the reservoir and the percentage of VCD opening necessary for the implementation of the drawdown of geomechanical crushing is determined on the basis of certain strength properties of the rock of the reservoir and the coefficients of filtration resistances A and B obtained during well testing in stationary modes. The productivity of the well is determined by conducting repeated well testing in stationary modes.

EFFECT: increasing the productivity of gas wells by increasing the permeability of the bottomhole zone of the reservoir by creating a system of macrofractures in it.

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