Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations

We performed a sequence of tests on a partially water-saturated sand sample contained in an x-ray transparent aluminum pressure vessel that is conducive to x-ray computed tomography (CT) observation. These tests were performed to gather data for estimation of thermal properties of the sand/water/gas...

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Main Authors: Kneafsey, Timothy J., Tomutsa, Liviu, Moridis, George J., Seol, Yongkoo, Freifeld, Barry, Taylor, Charles E., Gupta, Arvind
Format: Article in Journal/Newspaper
Language:English
Published: eScholarship, University of California 2005
Subjects:
Earth Sciences
Hydrate formation dissociation porous medium thermal stimulation depressurization x-ray computed tomography capillary pressure
Methane hydrate
Online Access:http://www.escholarship.org/uc/item/3771s0xv
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spelling ftcdlib:qt3771s0xv 2023-05-15T17:12:00+02:00 Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations Kneafsey, Timothy J. Tomutsa, Liviu Moridis, George J. Seol, Yongkoo Freifeld, Barry Taylor, Charles E. Gupta, Arvind 2005-03-01 application/pdf http://www.escholarship.org/uc/item/3771s0xv english eng eScholarship, University of California qt3771s0xv http://www.escholarship.org/uc/item/3771s0xv public Kneafsey, Timothy J.; Tomutsa, Liviu; Moridis, George J.; Seol, Yongkoo; Freifeld, Barry; Taylor, Charles E.; et al.(2005). Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/3771s0xv Earth Sciences Hydrate formation dissociation porous medium thermal stimulation depressurization x-ray computed tomography capillary pressure article 2005 ftcdlib 2016-04-02T18:32:31Z We performed a sequence of tests on a partially water-saturated sand sample contained in an x-ray transparent aluminum pressure vessel that is conducive to x-ray computed tomography (CT) observation. These tests were performed to gather data for estimation of thermal properties of the sand/water/gas system and the sand/hydrate/water/gas systems, as well as data to evaluate the kinetic nature of hydrate dissociation. The tests included mild thermal perturbations for the estimation of the thermal properties of the sand/water/gas system, hydrate formation, thermal perturbations with hydrate in the stability zone, hydrate dissociation through thermal stimulation, additional hydrate formation, and hydrate dissociation through depressurization with thermal stimulation. Density changes throughout the sample were observed as a result of hydrate formation and dissociation, and these processes induced capillary pressure changes that altered local water saturation. Article in Journal/Newspaper Methane hydrate University of California: eScholarship
institution Open Polar
collection University of California: eScholarship
op_collection_id ftcdlib
language English
topic Earth Sciences
Hydrate formation dissociation porous medium thermal stimulation depressurization x-ray computed tomography capillary pressure
spellingShingle Earth Sciences
Hydrate formation dissociation porous medium thermal stimulation depressurization x-ray computed tomography capillary pressure
Kneafsey, Timothy J.
Tomutsa, Liviu
Moridis, George J.
Seol, Yongkoo
Freifeld, Barry
Taylor, Charles E.
Gupta, Arvind
Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations
topic_facet Earth Sciences
Hydrate formation dissociation porous medium thermal stimulation depressurization x-ray computed tomography capillary pressure
description We performed a sequence of tests on a partially water-saturated sand sample contained in an x-ray transparent aluminum pressure vessel that is conducive to x-ray computed tomography (CT) observation. These tests were performed to gather data for estimation of thermal properties of the sand/water/gas system and the sand/hydrate/water/gas systems, as well as data to evaluate the kinetic nature of hydrate dissociation. The tests included mild thermal perturbations for the estimation of the thermal properties of the sand/water/gas system, hydrate formation, thermal perturbations with hydrate in the stability zone, hydrate dissociation through thermal stimulation, additional hydrate formation, and hydrate dissociation through depressurization with thermal stimulation. Density changes throughout the sample were observed as a result of hydrate formation and dissociation, and these processes induced capillary pressure changes that altered local water saturation.
format Article in Journal/Newspaper
author Kneafsey, Timothy J.
Tomutsa, Liviu
Moridis, George J.
Seol, Yongkoo
Freifeld, Barry
Taylor, Charles E.
Gupta, Arvind
author_facet Kneafsey, Timothy J.
Tomutsa, Liviu
Moridis, George J.
Seol, Yongkoo
Freifeld, Barry
Taylor, Charles E.
Gupta, Arvind
author_sort Kneafsey, Timothy J.
title Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations
title_short Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations
title_full Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations
title_fullStr Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations
title_full_unstemmed Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations
title_sort methane hydrate formation and dissocation in a partially saturated sand--measurements and observations
publisher eScholarship, University of California
publishDate 2005
url http://www.escholarship.org/uc/item/3771s0xv
genre Methane hydrate
genre_facet Methane hydrate
op_source Kneafsey, Timothy J.; Tomutsa, Liviu; Moridis, George J.; Seol, Yongkoo; Freifeld, Barry; Taylor, Charles E.; et al.(2005). Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/3771s0xv
op_relation qt3771s0xv
http://www.escholarship.org/uc/item/3771s0xv
op_rights public
_version_ 1766068753268736000

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