Method for determining the filtration properties of a fractured porous reservoir by solving the inverse problem using well output measurements

A method for the quantitative evaluation of the matrix and fracture permeabilities was developed and algorithmically implemented within the framework of the dual-porosity continuum model describing mass transfer in a fractured porous reservoir. The method involves the solution of the inverse coefficient problem whose input data are the well flow rate characteristics measured in the stop-start operation mode. The algorithm is based on the obtained analytical solution of the direct problem of the evolution of hydrodynamic fields in the near-wellbore space. The results of numerical experiments show that the inverse problem has a unique solution with a moderate level of noise in the input data.