This article is cited in 1 paper

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

A. L. Karchevsky^a, L. A. Nazarova^b, L. A. Nazarov<sup>b

a</sup> Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
^b Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, 630091, Novosibirsk, Russia

Abstract: 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.

Keywords: dual-porosity model, permeability, pressure, flow rate, inverse problem, fractured porous reservoir.

UDC: 532.5+517.9

Received: 17.08.2020
Revised: 31.08.2020
Accepted: 28.09.2020

DOI: 10.15372/PMTF20210609

 English version: Journal of Applied Mechanics and Technical Physics, 2021, 62:6, 952–958

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