Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media

Modeling of fluid flow in porous media and predicting its performance is one of the important subjects in petroleum engineering. This research reports the development of a lattice gas automata method to study and simulate a single-phase and two-phase flow in heterogeneous porous media as an alternat...

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Main Author:	Kristanto, Dedi
Format:	Thesis
Language:	English
Published:	2004
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/4304/1/DediKristantoPFChE2004.pdf
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spelling	my-utm-ep.43042018-01-16T08:38:14Z Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media 2004-09-03 Kristanto, Dedi TP Chemical technology Modeling of fluid flow in porous media and predicting its performance is one of the important subjects in petroleum engineering. This research reports the development of a lattice gas automata method to study and simulate a single-phase and two-phase flow in heterogeneous porous media as an alternative to conventional methods (finite difference and finite element). In this work, the FHP-II (Frisch, Hasslacher and Pomeau, FHP) model of lattice gas automata was developed to simulate microscopic fluid flow and estimate the macroscopic properties of heterogeneous porous media. Heterogeneity of the porous media was constructed by placing solid obstacles randomly in a two-dimensional test volume. Effects of grain shape and size geometry, and their distribution in the porous media were taken into account. In addition, macroscopic properties of the heterogeneous porous media were estimated in terms of the shape, size, number of the solid obstacles and by the distribution of the solid obstacles within the volume. In the single-phase flow simulation part, a heterogeneous porous media was constructed, and correlations between various macroscopic properties, i.e., tortuosity, specific surface area, effective porosity and permeability were obtained. In the two-phase flow simulation part, the phase separation of the two immiscible fluids was described. Furthermore, the surface tension and capillary pressure were also estimated. The displacement mechanisms of carbon dioxide to displace oil and displacement efficiency of the process in the heterogeneous porous media were also predicted. Generally, the lattice gas automata simulation produced similar results with previous researchers and experiments. Errors of between 10% and 25% were associated with the computed results from the single-phase flow simulation part for the permeability prediction, compared with the laboratory experiments, while for the immiscible fluids displacement process it was less than 5%. Based on the results, it is obvious that the lattice gas automata method was indeed capable of being applied in petroleum engineering for simulation of a single-phase and two-phase flow in heterogeneous porous media. 2004-09 Thesis http://eprints.utm.my/id/eprint/4304/ http://eprints.utm.my/id/eprint/4304/1/DediKristantoPFChE2004.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering Faculty of Chemical and Natural Resources Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Kristanto, Dedi Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
description	Modeling of fluid flow in porous media and predicting its performance is one of the important subjects in petroleum engineering. This research reports the development of a lattice gas automata method to study and simulate a single-phase and two-phase flow in heterogeneous porous media as an alternative to conventional methods (finite difference and finite element). In this work, the FHP-II (Frisch, Hasslacher and Pomeau, FHP) model of lattice gas automata was developed to simulate microscopic fluid flow and estimate the macroscopic properties of heterogeneous porous media. Heterogeneity of the porous media was constructed by placing solid obstacles randomly in a two-dimensional test volume. Effects of grain shape and size geometry, and their distribution in the porous media were taken into account. In addition, macroscopic properties of the heterogeneous porous media were estimated in terms of the shape, size, number of the solid obstacles and by the distribution of the solid obstacles within the volume. In the single-phase flow simulation part, a heterogeneous porous media was constructed, and correlations between various macroscopic properties, i.e., tortuosity, specific surface area, effective porosity and permeability were obtained. In the two-phase flow simulation part, the phase separation of the two immiscible fluids was described. Furthermore, the surface tension and capillary pressure were also estimated. The displacement mechanisms of carbon dioxide to displace oil and displacement efficiency of the process in the heterogeneous porous media were also predicted. Generally, the lattice gas automata simulation produced similar results with previous researchers and experiments. Errors of between 10% and 25% were associated with the computed results from the single-phase flow simulation part for the permeability prediction, compared with the laboratory experiments, while for the immiscible fluids displacement process it was less than 5%. Based on the results, it is obvious that the lattice gas automata method was indeed capable of being applied in petroleum engineering for simulation of a single-phase and two-phase flow in heterogeneous porous media.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Kristanto, Dedi
author_facet	Kristanto, Dedi
author_sort	Kristanto, Dedi
title	Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
title_short	Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
title_full	Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
title_fullStr	Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
title_full_unstemmed	Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
title_sort	lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering
granting_department	Faculty of Chemical and Natural Resources Engineering
publishDate	2004
url	http://eprints.utm.my/id/eprint/4304/1/DediKristantoPFChE2004.pdf
_version_	1747814511338848256

Lattice gas automata simulations of a single-phase and two-phase flow in heterogeneous porous media

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