DETERMINING THE FLUID TRANSPORT PROPERTIES OF A FRACTURED POROUS RESERVOIR BY SOLVING THE INVERSE PROBLEM USING WELL OUTPUT MEASUREMENTS

A dual-porosity continuum model describing mass transfer in fractured porous reservoirs is used to develop and algorithmically implement a method for the quantitative estimation of the matrix and fracture permeabilities by solving the inverse coefficient problem whose input data are well output measurements 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 zone. The results of numerical experiments show that the inverse problem has a unique solution with a moderate level of noise in the input data.