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A dual porosity model of high-pressure gas flow for geoenergy applications

L.J. Hosking, Hywel Thomas Orcid Logo, M. Sedighi

Canadian Geotechnical Journal, Volume: 55, Issue: 6, Pages: 839 - 851

Swansea University Author: Hywel Thomas Orcid Logo

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DOI (Published version): 10.1139/cgj-2016-0532

Abstract

This paper presents the development of a dual porosity numerical model of multiphase, multicomponent chemical–gas transport using a coupled thermal, hydraulic, chemical, and mechanical formulation. Appropriate relationships are used to describe the transport properties of nonideal, reactive gas mixt...

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Published in: Canadian Geotechnical Journal
ISSN: 0008-3674 1208-6010
Published: Canadian Science Publishing 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa52883
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first_indexed 2019-11-26T13:15:42Z
last_indexed 2020-08-15T03:14:18Z
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spelling 2020-08-14T12:08:41.2276840 v2 52883 2019-11-26 A dual porosity model of high-pressure gas flow for geoenergy applications 08ebc76b093f3e17fed29281f5cb637e 0000-0002-3951-0409 Hywel Thomas Hywel Thomas true false 2019-11-26 CIVL This paper presents the development of a dual porosity numerical model of multiphase, multicomponent chemical–gas transport using a coupled thermal, hydraulic, chemical, and mechanical formulation. Appropriate relationships are used to describe the transport properties of nonideal, reactive gas mixtures at high pressure, enabling the study of geoenergy applications such as geological carbon sequestration. Theoretical descriptions of the key transport processes are based on a dual porosity approach considering the fracture network and porous matrix as distinct continua over the domain. Flow between the pore regions is handled using mass exchange terms and the model includes equilibrium and kinetically controlled chemical reactions. A numerical solution is obtained with a finite element and finite difference approach and verification of the model is pursued to build confidence in the accuracy of the implementation of the dual porosity governing equations. In the course of these tests, the time-splitting approach used to couple the transport, mass exchange, and chemical reaction modules is shown to have been successfully applied. It is claimed that the modelling platform developed provides an advanced tool for the study of high-pressure gas transport, storage, and displacement for geoenergy applications involving multiphase, multicomponent chemical–gas transport in dual porosity media, such as geological carbon sequestration. Journal Article Canadian Geotechnical Journal 55 6 839 851 Canadian Science Publishing 0008-3674 1208-6010 dual porosity, gas flow, high pressure, carbon sequestration, geoenergy 1 6 2018 2018-06-01 10.1139/cgj-2016-0532 http://orca.cf.ac.uk/109195/ COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2020-08-14T12:08:41.2276840 2019-11-26T11:01:48.8803948 L.J. Hosking 1 Hywel Thomas 0000-0002-3951-0409 2 M. Sedighi 3
title A dual porosity model of high-pressure gas flow for geoenergy applications
spellingShingle A dual porosity model of high-pressure gas flow for geoenergy applications
Hywel Thomas
title_short A dual porosity model of high-pressure gas flow for geoenergy applications
title_full A dual porosity model of high-pressure gas flow for geoenergy applications
title_fullStr A dual porosity model of high-pressure gas flow for geoenergy applications
title_full_unstemmed A dual porosity model of high-pressure gas flow for geoenergy applications
title_sort A dual porosity model of high-pressure gas flow for geoenergy applications
author_id_str_mv 08ebc76b093f3e17fed29281f5cb637e
author_id_fullname_str_mv 08ebc76b093f3e17fed29281f5cb637e_***_Hywel Thomas
author Hywel Thomas
author2 L.J. Hosking
Hywel Thomas
M. Sedighi
format Journal article
container_title Canadian Geotechnical Journal
container_volume 55
container_issue 6
container_start_page 839
publishDate 2018
institution Swansea University
issn 0008-3674
1208-6010
doi_str_mv 10.1139/cgj-2016-0532
publisher Canadian Science Publishing
url http://orca.cf.ac.uk/109195/
document_store_str 0
active_str 0
description This paper presents the development of a dual porosity numerical model of multiphase, multicomponent chemical–gas transport using a coupled thermal, hydraulic, chemical, and mechanical formulation. Appropriate relationships are used to describe the transport properties of nonideal, reactive gas mixtures at high pressure, enabling the study of geoenergy applications such as geological carbon sequestration. Theoretical descriptions of the key transport processes are based on a dual porosity approach considering the fracture network and porous matrix as distinct continua over the domain. Flow between the pore regions is handled using mass exchange terms and the model includes equilibrium and kinetically controlled chemical reactions. A numerical solution is obtained with a finite element and finite difference approach and verification of the model is pursued to build confidence in the accuracy of the implementation of the dual porosity governing equations. In the course of these tests, the time-splitting approach used to couple the transport, mass exchange, and chemical reaction modules is shown to have been successfully applied. It is claimed that the modelling platform developed provides an advanced tool for the study of high-pressure gas transport, storage, and displacement for geoenergy applications involving multiphase, multicomponent chemical–gas transport in dual porosity media, such as geological carbon sequestration.
published_date 2018-06-01T04:05:31Z
_version_ 1763753414237356032
score 10.998093

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