METHOD FOR DETERMINING HYDRODYNAMIC PARAMETERS OF PRODUCTIVE FORMATION Russian patent published in 2018 - IPC E21B49/00 

FIELD: geology.

SUBSTANCE: when studying the hydrodynamic characteristics of the formation test (FT), a certain number of measurements are performed, depending on the type of cut, the reservoir properties of the reservoir and the degree of heterogeneity, and their integration with GIS data. Based on the results of the studies, point measurements of the effective permeability of Kp(FT), from the obtained dependence of the absolute permeability on the effective Kp(GIS)=f(Kp(FT)), the effective permeability curve is obtained for the whole production interval, the conductivity coefficient (Kp(FT)*Neff) is calculated from the Kp(FT) curve for each interlayer, the total conductivity factor is calculated ΣKp(FT)*Neff, on the basis of calculation ΣKp(FT)*Neff and parameters of formation fluid, the Dupuy equation calculates the productivity factor for the whole of the well or part of the reservoir that is opened by the well, the indicator curves are plotted, according to which well flow rates are predicted for various depressions. This data can also be used to assess the quality of the forecast if the well is tested in a column.

EFFECT: invention is aimed at increasing the efficiency and optimizing geological exploration, especially in the Arctic and northern seas shelf, by achieving a technical result, which is to reduce the time and financial costs by determining the hydrodynamic parameters of productive oil or gas reservoirs using formation test devices, as well as from GIS data.

3 cl, 1 tbl, 1 dwg