Global sensitivity analysis for a stochastic flow problem

Kolyukhin Dmitriy ()
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Kolyukhin Dmitriy: Trofimuk Institute of Petroleum Geology and Geophysics SB RAS, Akademika Koptyuga Prosp. 3, Novosibirsk, 630090, Russia

Monte Carlo Methods and Applications, 2018, vol. 24, issue 4, 263-270

Abstract: The paper is devoted to the modeling of a single-phase flow through saturated porous media. A statistical approach where permeability is considered as a lognormal random field is applied. The impact of permeability, random boundary conditions and wells pressure on the flow in a production well is studied. A numerical procedure to generate an ensemble of realizations of the numerical solution of the problem is developed. A global sensitivity analysis is performed using Sobol indices. The impact of different model parameters on the total model uncertainty is studied.

Keywords: Upscaling; Darcy law; flow modeling; lognormal random field; geological facies; Sobol indices (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1515/mcma-2018-2022

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