Measuring and modeling thermal conductivity of gas hydrate-bearing sand
Effective thermal conductivity (ETC) of both tetrahydrofuran (THF) and methane hydrate-bearing sandy porous media was measured by the Hot Disk Thermal Constant Analyser. Thermal conductivity of methane hydrate is 0.575 W m(-1) K-1 at 0degreesC and 6.6 MPa (methane gas pressure), which is close to TH...
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/10221 2023-05-15T17:11:24+02:00 Measuring and modeling thermal conductivity of gas hydrate-bearing sand Huang, DZ Fan, SS 2005-01-25 http://ir.giec.ac.cn/handle/344007/10221 https://doi.org/10.1029/2004JB003314 英语 eng JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH http://ir.giec.ac.cn/handle/344007/10221 doi:10.1029/2004JB003314 Science & Technology Physical Sciences Geochemistry & Geophysics METHANE HYDRATE THERMOELECTRIC-MATERIALS ENERGY RESOURCE HEAT-CAPACITY CLATHRATE SEDIMENTS DIFFUSIVITY MIXTURES Article 期刊论文 2005 ftchacadsciegiec https://doi.org/10.1029/2004JB003314 2022-09-23T14:12:17Z Effective thermal conductivity (ETC) of both tetrahydrofuran (THF) and methane hydrate-bearing sandy porous media was measured by the Hot Disk Thermal Constant Analyser. Thermal conductivity of methane hydrate is 0.575 W m(-1) K-1 at 0degreesC and 6.6 MPa (methane gas pressure), which is close to THF hydrate's 0.51 W m(-1) K-1 at 0degreesC and 0.1 MPa (atmosphere pressure). However, the measured 1 W m(-1) K-1 ETC of methane hydrate-bearing sand is significantly lower than that of THF hydrate-bearing sand at similar to2 W m(-1) K-1. This is because the methane hydrate formed with a sodium dodecyl sulfate (SDS) solution in sand at our laboratory has a "wall creeping'' growth characteristic and consequently a large part of the pores were filled with methane free gas. ETCs of sand containing gas hydrates were also calculated using a renormalization method. The process involves sample partitioning, labeling, initial value assignments, and renormalization calculations. A Monte Carlo analysis was applied to sample laboratory-scale gas hydrate-bearing sand assemblies. We found that the renormalization modeling results agreed well with measured ETCs when each photo of a 1.3 mm x 1.3 mm subsample was divided into 16 or more blocks. Article in Journal/Newspaper Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Journal of Geophysical Research 110 B1 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Science & Technology Physical Sciences Geochemistry & Geophysics METHANE HYDRATE THERMOELECTRIC-MATERIALS ENERGY RESOURCE HEAT-CAPACITY CLATHRATE SEDIMENTS DIFFUSIVITY MIXTURES |
spellingShingle |
Science & Technology Physical Sciences Geochemistry & Geophysics METHANE HYDRATE THERMOELECTRIC-MATERIALS ENERGY RESOURCE HEAT-CAPACITY CLATHRATE SEDIMENTS DIFFUSIVITY MIXTURES Huang, DZ Fan, SS Measuring and modeling thermal conductivity of gas hydrate-bearing sand |
topic_facet |
Science & Technology Physical Sciences Geochemistry & Geophysics METHANE HYDRATE THERMOELECTRIC-MATERIALS ENERGY RESOURCE HEAT-CAPACITY CLATHRATE SEDIMENTS DIFFUSIVITY MIXTURES |
description |
Effective thermal conductivity (ETC) of both tetrahydrofuran (THF) and methane hydrate-bearing sandy porous media was measured by the Hot Disk Thermal Constant Analyser. Thermal conductivity of methane hydrate is 0.575 W m(-1) K-1 at 0degreesC and 6.6 MPa (methane gas pressure), which is close to THF hydrate's 0.51 W m(-1) K-1 at 0degreesC and 0.1 MPa (atmosphere pressure). However, the measured 1 W m(-1) K-1 ETC of methane hydrate-bearing sand is significantly lower than that of THF hydrate-bearing sand at similar to2 W m(-1) K-1. This is because the methane hydrate formed with a sodium dodecyl sulfate (SDS) solution in sand at our laboratory has a "wall creeping'' growth characteristic and consequently a large part of the pores were filled with methane free gas. ETCs of sand containing gas hydrates were also calculated using a renormalization method. The process involves sample partitioning, labeling, initial value assignments, and renormalization calculations. A Monte Carlo analysis was applied to sample laboratory-scale gas hydrate-bearing sand assemblies. We found that the renormalization modeling results agreed well with measured ETCs when each photo of a 1.3 mm x 1.3 mm subsample was divided into 16 or more blocks. |
format |
Article in Journal/Newspaper |
author |
Huang, DZ Fan, SS |
author_facet |
Huang, DZ Fan, SS |
author_sort |
Huang, DZ |
title |
Measuring and modeling thermal conductivity of gas hydrate-bearing sand |
title_short |
Measuring and modeling thermal conductivity of gas hydrate-bearing sand |
title_full |
Measuring and modeling thermal conductivity of gas hydrate-bearing sand |
title_fullStr |
Measuring and modeling thermal conductivity of gas hydrate-bearing sand |
title_full_unstemmed |
Measuring and modeling thermal conductivity of gas hydrate-bearing sand |
title_sort |
measuring and modeling thermal conductivity of gas hydrate-bearing sand |
publishDate |
2005 |
url |
http://ir.giec.ac.cn/handle/344007/10221 https://doi.org/10.1029/2004JB003314 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH http://ir.giec.ac.cn/handle/344007/10221 doi:10.1029/2004JB003314 |
op_doi |
https://doi.org/10.1029/2004JB003314 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
B1 |
_version_ |
1766068201656942592 |