ANALYSIS OF THE HETEROGENEITY INFLUENCE ON MAIN PARAMETERS OF POROUS MEDIA AT THE PORE SCALE

Bolysbek D.A. Assilbekov B.K. Akasheva Z.K. Soltanbekova K.A.
2021 al-Farabi Kazakh State National University

KazNU Bulletin. Mathematics, Mechanics, Computer Science Series
2021 #112 Issue 4 69 - 77 pp.

The study to analyze the heterogeneity of porous medium, especially its influence of main characteristics is conducted in this paper. For this goal computer versions of real porous models, which were available in open source, were used. These models contain several slices at three directions. Re-build and processing of models were performed using the Avizo Software. For analyzing the influence of the heterogeneity of porous medium on basic parameters, each model were divided into several geometrical pieces. These parameters were computed using computational method of pore network modelling (PNM) and Kozeny-Carman (KC) method with purpose of collation. Also, these two methods were collated with available data from direct numerical computation method (DNC). According to analyzing it was set a good match between PNM and DNC for sandstone models, also KC method showed a divergence with DNC. For carbonate models, a divergence was seen between PNM and DNC, and KC method showed very good match with DNC. The relationship between the parameters for each of piece shows inhomogeneous character for the carbonate model.

Direct Numerical Computation , Kozeny-Carman equation , permeability , Pore Network Modelling , porosity

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Satbayev University, Almaty, Kazakhstan

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