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Modelling of Gas Flow in the Underground Coal Gasification Process and its Interactions with the Rock Environment

Author ORCID Identifier

Tomasz Janoszek 0000-0001-7006-0285

M. Jacek Łączny 0000-0002-0045-5000

Krzysztof Stańczyk 0000-0001-8273-7409

Adam Smoliński 0000-0002-4901-7546

Marian Wiatowski 0000-0002-2396-1010

Abstract

The main goal of this study was the analysis of gas flow in the underground coal gasification process and interactions with the surrounding rock mass. The article is a discussion of the assumptions for the geometric model and for the numerical method for its solution as well as assumptions for modelling the geochemical model of the interaction between gas-rock-water, in terms of equilibrium calculations, chemical and gas flow modelling in porous mediums. Ansys-Fluent software was used to describe the underground coal gasification process (UCG). The numerical solution was compared with experimental data. The PHREEQC program was used to describe the chemical reaction between the gaseous products of the UCG process and the rock strata in the presence of reservoir waters.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

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