IDENTIFICATION OF PARAMETERS OF A FRACTURED-POROUS RESERVOIR BY THE DATA OF UNSTEADY FLUID INFLOW TO VERTICAL WELLS

The author proposes a numerical algorithm to indentify fi ltration and capacitory parameters of a fractured-porous reservoir by the results of hydrodynamic investigations of the well on the basis of the Levenberg–Marquardt method, which belongs to the methods of minimization of second order. The algorithm makes it possible to determine the total set of such parameters of a fractured-porous reservoir as the permeability coeffi cients of fractures and blocks, the parameters of fl uid crossfl ow between blocks and fractures, the characteristic delay times, the linear dimension of matrix blocks of rock, the piezoconductivity coeffi cients of blocks and fractures of the reservoir, the reservoir pressure, and the effi ciency of the well.
The author proposes a numerical algorithm to indentify fi ltration and capacitory parameters of a fractured-porous reservoir by the results of hydrodynamic investigations of the well on the basis of the Levenberg–Marquardt method, which belongs to the methods of minimization of second order. The algorithm makes it possible to determine the total set of such parameters of a fractured-porous reservoir as the permeability coeffi cients of fractures and blocks, the parameters of fl uid crossfl ow between blocks and fractures, the characteristic delay times, the linear dimension of matrix blocks of rock, the piezoconductivity coeffi cients of blocks and fractures of the reservoir, the reservoir pressure, and the effi ciency of the well.
Author:  R. V. Sadovnikov
Keywords:  identifi cation, fractured-porous reservoir, inverse problem, regularization, minimization methods, scaling
Page:  1103