Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems
A recent Department of Energy field test on the Alaska North Slope has increased interest in the ability to simulate systems of mixed CO2-CH4 hydrates. However, the physically realistic simulation of mixed-hydrate simulation is not yet a fully solved problem. Limited quantitative laboratory data lea...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
eScholarship, University of California
2017
|
Subjects: | |
Online Access: | https://escholarship.org/uc/item/19p536vj |
id |
ftcdlib:oai:escholarship.org:ark:/13030/qt19p536vj |
---|---|
record_format |
openpolar |
spelling |
ftcdlib:oai:escholarship.org:ark:/13030/qt19p536vj 2024-02-04T09:52:23+01:00 Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems Reagan, Matthew T Moridis, George J Seim, Katie S 2017-06-01 application/pdf https://escholarship.org/uc/item/19p536vj unknown eScholarship, University of California qt19p536vj https://escholarship.org/uc/item/19p536vj public Information and Computing Sciences Applied Computing Methane hydrate CO2 hydrate Mixed hydrate Equation of state Earth Sciences Engineering Geochemistry & Geophysics article 2017 ftcdlib 2024-01-08T19:06:10Z A recent Department of Energy field test on the Alaska North Slope has increased interest in the ability to simulate systems of mixed CO2-CH4 hydrates. However, the physically realistic simulation of mixed-hydrate simulation is not yet a fully solved problem. Limited quantitative laboratory data leads to the use of various ab initio, statistical mechanical, or other mathematic representations of mixed-hydrate phase behavior. Few of these methods are suitable for inclusion in reservoir simulations, particularly for systems with large number of grid elements, 3D systems, or systems with complex geometric configurations. In this work, we present a set of fast parametric relationships describing the thermodynamic properties and phase behavior of a mixed methane-carbon dioxide hydrate system. We use well-known, off-the-shelf hydrate physical properties packages to generate a sufficiently large dataset, select the most convenient and efficient mathematical forms, and fit the data to those forms to create a physical properties package suitable for inclusion in the TOUGH+ family of codes. The mapping of the phase and thermodynamic space reveals the complexity of the mixed-hydrate system and allows understanding of the thermodynamics at a level beyond what much of the existing laboratory data and literature currently offer. Article in Journal/Newspaper Alaska North Slope Methane hydrate north slope Alaska University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Information and Computing Sciences Applied Computing Methane hydrate CO2 hydrate Mixed hydrate Equation of state Earth Sciences Engineering Geochemistry & Geophysics |
spellingShingle |
Information and Computing Sciences Applied Computing Methane hydrate CO2 hydrate Mixed hydrate Equation of state Earth Sciences Engineering Geochemistry & Geophysics Reagan, Matthew T Moridis, George J Seim, Katie S Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems |
topic_facet |
Information and Computing Sciences Applied Computing Methane hydrate CO2 hydrate Mixed hydrate Equation of state Earth Sciences Engineering Geochemistry & Geophysics |
description |
A recent Department of Energy field test on the Alaska North Slope has increased interest in the ability to simulate systems of mixed CO2-CH4 hydrates. However, the physically realistic simulation of mixed-hydrate simulation is not yet a fully solved problem. Limited quantitative laboratory data leads to the use of various ab initio, statistical mechanical, or other mathematic representations of mixed-hydrate phase behavior. Few of these methods are suitable for inclusion in reservoir simulations, particularly for systems with large number of grid elements, 3D systems, or systems with complex geometric configurations. In this work, we present a set of fast parametric relationships describing the thermodynamic properties and phase behavior of a mixed methane-carbon dioxide hydrate system. We use well-known, off-the-shelf hydrate physical properties packages to generate a sufficiently large dataset, select the most convenient and efficient mathematical forms, and fit the data to those forms to create a physical properties package suitable for inclusion in the TOUGH+ family of codes. The mapping of the phase and thermodynamic space reveals the complexity of the mixed-hydrate system and allows understanding of the thermodynamics at a level beyond what much of the existing laboratory data and literature currently offer. |
format |
Article in Journal/Newspaper |
author |
Reagan, Matthew T Moridis, George J Seim, Katie S |
author_facet |
Reagan, Matthew T Moridis, George J Seim, Katie S |
author_sort |
Reagan, Matthew T |
title |
Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems |
title_short |
Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems |
title_full |
Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems |
title_fullStr |
Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems |
title_full_unstemmed |
Fast parametric relationships for the large-scale reservoir simulation of mixed CH4-CO2 gas hydrate systems |
title_sort |
fast parametric relationships for the large-scale reservoir simulation of mixed ch4-co2 gas hydrate systems |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/19p536vj |
genre |
Alaska North Slope Methane hydrate north slope Alaska |
genre_facet |
Alaska North Slope Methane hydrate north slope Alaska |
op_relation |
qt19p536vj https://escholarship.org/uc/item/19p536vj |
op_rights |
public |
_version_ |
1789971872091209728 |