Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media
The objective of this study is the description of the kinetic dissociation of CH4-hydrates in porous media, and the determination of the corresponding kinetic parameters. Knowledge of the kinetic dissociation behavior of hydrates can play a critical role in the evaluation of gas production potential...
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Lawrence Berkeley National Laboratory
2005
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ftunivnotexas:info:ark/67531/metadc779113 2023-05-15T17:12:07+02:00 Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media Moridis, George J. Seol, Yongkoo Kneafsey, Timothy J. USDOE. Assistant Secretary for Fossil Energy. Office of Natural Gas and Petroleum Technology. National Energy Technology Laboratory 2005-03-10 Text http://digital.library.unt.edu/ark:/67531/metadc779113/ English eng Lawrence Berkeley National Laboratory rep-no: LBNL--57298 grantno: AC03-76SF00098 osti: 842696 http://digital.library.unt.edu/ark:/67531/metadc779113/ ark: ark:/67531/metadc779113 Fifth International Conference on Gas Hydrates (ICGH 5), Trondheim, Norway, June 13-16, 2005 Aluminium Dissociation Kinetics Computerized Tomography Hydrates Simulation 58 Geosciences Hydration Reaction Kinetics Production Sand Gas Hydrates Pressure Vessels Stimulation Thermodynamic Properties Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Thermal Conductivity Article 2005 ftunivnotexas 2016-04-09T22:12:05Z The objective of this study is the description of the kinetic dissociation of CH4-hydrates in porous media, and the determination of the corresponding kinetic parameters. Knowledge of the kinetic dissociation behavior of hydrates can play a critical role in the evaluation of gas production potential of gas hydrate accumulations in geologic media. We analyzed data from a sequence of tests of CH4-hydrate dissociation by means of thermal stimulation. These tests had been conducted on sand cores partially saturated with water, hydrate and CH4 gas, and contained in an x-ray-transparent aluminum pressure vessel. The pressure, volume of released gas, and temperature (at several locations within the cores) were measured. To avoid misinterpreting local changes as global processes, x-ray computed tomography scans provided accurate images of the location and movement of the reaction interface during the course of the experiments. Analysis of the data by means of inverse modeling (history matching ) provided estimates of the thermal properties and of the kinetic parameters of the hydration reaction in porous media. Comparison of the results from the hydrate-bearing porous media cores to those from pure CH4-hydrate samples provided a measure of the effect of the porous medium on the kinetic reaction. A tentative model of composite thermal conductivity of hydrate-bearing media was also developed. Article in Journal/Newspaper Methane hydrate University of North Texas: UNT Digital Library |
institution |
Open Polar |
collection |
University of North Texas: UNT Digital Library |
op_collection_id |
ftunivnotexas |
language |
English |
topic |
Aluminium Dissociation Kinetics Computerized Tomography Hydrates Simulation 58 Geosciences Hydration Reaction Kinetics Production Sand Gas Hydrates Pressure Vessels Stimulation Thermodynamic Properties Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Thermal Conductivity |
spellingShingle |
Aluminium Dissociation Kinetics Computerized Tomography Hydrates Simulation 58 Geosciences Hydration Reaction Kinetics Production Sand Gas Hydrates Pressure Vessels Stimulation Thermodynamic Properties Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Thermal Conductivity Moridis, George J. Seol, Yongkoo Kneafsey, Timothy J. Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media |
topic_facet |
Aluminium Dissociation Kinetics Computerized Tomography Hydrates Simulation 58 Geosciences Hydration Reaction Kinetics Production Sand Gas Hydrates Pressure Vessels Stimulation Thermodynamic Properties Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Hydrate Dissociation Porous Medium Thermal Stimulation Depressurization Kinetic Parameters Thermal Conductivity Thermal Conductivity |
description |
The objective of this study is the description of the kinetic dissociation of CH4-hydrates in porous media, and the determination of the corresponding kinetic parameters. Knowledge of the kinetic dissociation behavior of hydrates can play a critical role in the evaluation of gas production potential of gas hydrate accumulations in geologic media. We analyzed data from a sequence of tests of CH4-hydrate dissociation by means of thermal stimulation. These tests had been conducted on sand cores partially saturated with water, hydrate and CH4 gas, and contained in an x-ray-transparent aluminum pressure vessel. The pressure, volume of released gas, and temperature (at several locations within the cores) were measured. To avoid misinterpreting local changes as global processes, x-ray computed tomography scans provided accurate images of the location and movement of the reaction interface during the course of the experiments. Analysis of the data by means of inverse modeling (history matching ) provided estimates of the thermal properties and of the kinetic parameters of the hydration reaction in porous media. Comparison of the results from the hydrate-bearing porous media cores to those from pure CH4-hydrate samples provided a measure of the effect of the porous medium on the kinetic reaction. A tentative model of composite thermal conductivity of hydrate-bearing media was also developed. |
author2 |
USDOE. Assistant Secretary for Fossil Energy. Office of Natural Gas and Petroleum Technology. National Energy Technology Laboratory |
format |
Article in Journal/Newspaper |
author |
Moridis, George J. Seol, Yongkoo Kneafsey, Timothy J. |
author_facet |
Moridis, George J. Seol, Yongkoo Kneafsey, Timothy J. |
author_sort |
Moridis, George J. |
title |
Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media |
title_short |
Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media |
title_full |
Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media |
title_fullStr |
Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media |
title_full_unstemmed |
Studies of Reaction Kinetics of Methane Hydrate Dissocation in Porous Media |
title_sort |
studies of reaction kinetics of methane hydrate dissocation in porous media |
publisher |
Lawrence Berkeley National Laboratory |
publishDate |
2005 |
url |
http://digital.library.unt.edu/ark:/67531/metadc779113/ |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Fifth International Conference on Gas Hydrates (ICGH 5), Trondheim, Norway, June 13-16, 2005 |
op_relation |
rep-no: LBNL--57298 grantno: AC03-76SF00098 osti: 842696 http://digital.library.unt.edu/ark:/67531/metadc779113/ ark: ark:/67531/metadc779113 |
_version_ |
1766068886935961600 |