Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2

We determined the composite thermal conductivity (ktheta) of a porous methanehydrate sample (composedof hydrate, water, and methan e gas) as a function of density using iTOUGH2. X-ray computed tomography (CT) was used to visualize and quantify the density changes that occurred during hydrate formati...

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Main Authors: Gupta, Arvind, Kneafsey, Timothy J., Moridis, George J., Seol, Yongkoo, Kowalsky, Michael B., Sloan Jr., E.D.
Format: Article in Journal/Newspaper
Language:English
Published: eScholarship, University of California 2006
Subjects:
Earth Sciences
Materials Sciences
Environmental Energy Technologies
gas hydrate thermal conductivity inverse modeling iTOUGH
Methane hydrate
Online Access:http://www.escholarship.org/uc/item/3z45639r
id ftcdlib:qt3z45639r
record_format openpolar
spelling ftcdlib:qt3z45639r 2023-05-15T17:11:54+02:00 Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2 Gupta, Arvind Kneafsey, Timothy J. Moridis, George J. Seol, Yongkoo Kowalsky, Michael B. Sloan Jr., E.D. 2006-05-15 application/pdf http://www.escholarship.org/uc/item/3z45639r english eng eScholarship, University of California qt3z45639r http://www.escholarship.org/uc/item/3z45639r public Gupta, Arvind; Kneafsey, Timothy J.; Moridis, George J.; Seol, Yongkoo; Kowalsky, Michael B.; & Sloan Jr., E.D.(2006). Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/3z45639r Earth Sciences Materials Sciences Environmental Energy Technologies gas hydrate thermal conductivity inverse modeling iTOUGH article 2006 ftcdlib 2016-04-02T18:35:31Z We determined the composite thermal conductivity (ktheta) of a porous methanehydrate sample (composedof hydrate, water, and methan e gas) as a function of density using iTOUGH2. X-ray computed tomography (CT) was used to visualize and quantify the density changes that occurred during hydrate formation from granular ice. The composite thermal conductivity was estimated and validated by minimizing the differences between the observed and the predicted thermal response using history matching. The estimated density-dependent composite thermal conductivity ranged between 0.25 and 0.58 W/m/K. 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
Materials Sciences
Environmental Energy Technologies
gas hydrate thermal conductivity inverse modeling iTOUGH
spellingShingle Earth Sciences
Materials Sciences
Environmental Energy Technologies
gas hydrate thermal conductivity inverse modeling iTOUGH
Gupta, Arvind
Kneafsey, Timothy J.
Moridis, George J.
Seol, Yongkoo
Kowalsky, Michael B.
Sloan Jr., E.D.
Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2
topic_facet Earth Sciences
Materials Sciences
Environmental Energy Technologies
gas hydrate thermal conductivity inverse modeling iTOUGH
description We determined the composite thermal conductivity (ktheta) of a porous methanehydrate sample (composedof hydrate, water, and methan e gas) as a function of density using iTOUGH2. X-ray computed tomography (CT) was used to visualize and quantify the density changes that occurred during hydrate formation from granular ice. The composite thermal conductivity was estimated and validated by minimizing the differences between the observed and the predicted thermal response using history matching. The estimated density-dependent composite thermal conductivity ranged between 0.25 and 0.58 W/m/K.
format Article in Journal/Newspaper
author Gupta, Arvind
Kneafsey, Timothy J.
Moridis, George J.
Seol, Yongkoo
Kowalsky, Michael B.
Sloan Jr., E.D.
author_facet Gupta, Arvind
Kneafsey, Timothy J.
Moridis, George J.
Seol, Yongkoo
Kowalsky, Michael B.
Sloan Jr., E.D.
author_sort Gupta, Arvind
title Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2
title_short Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2
title_full Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2
title_fullStr Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2
title_full_unstemmed Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2
title_sort estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using itough2
publisher eScholarship, University of California
publishDate 2006
url http://www.escholarship.org/uc/item/3z45639r
genre Methane hydrate
genre_facet Methane hydrate
op_source Gupta, Arvind; Kneafsey, Timothy J.; Moridis, George J.; Seol, Yongkoo; Kowalsky, Michael B.; & Sloan Jr., E.D.(2006). Estimation of composite thermal conductivity of a heterogeneous methane hydrate sample using iTOUGH2. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/3z45639r
op_relation qt3z45639r
http://www.escholarship.org/uc/item/3z45639r
op_rights public
_version_ 1766068644157063168

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