Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography
A high-speed X-ray computerized tomography (CT) system was developed for measuring the texture of methane hydrate sediment. The system enabled time dependent nondestructive observations of the hydrate sediment in a volume of φ100×100 mm 3 within 40 s. The spatial variation of mass density and the vo...
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crioppubl:10.1143/jjap.44.473 2024-09-15T18:11:39+00:00 Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography Sato, Mitsutaka Takeya, Satoshi Nagao, Jiro Jin, Shigeki Kamata, Yasushi Minagawa, Hideki Ebinuma, Takao Narita, Hideo 2005 http://dx.doi.org/10.1143/jjap.44.473 https://iopscience.iop.org/article/10.1143/JJAP.44.473 https://iopscience.iop.org/article/10.1143/JJAP.44.473/pdf unknown IOP Publishing https://iopscience.iop.org/page/copyright https://iopscience.iop.org/info/page/text-and-data-mining Japanese Journal of Applied Physics volume 44, issue 1R, page 473 ISSN 0021-4922 1347-4065 journal-article 2005 crioppubl https://doi.org/10.1143/jjap.44.473 2024-08-05T04:19:44Z A high-speed X-ray computerized tomography (CT) system was developed for measuring the texture of methane hydrate sediment. The system enabled time dependent nondestructive observations of the hydrate sediment in a volume of φ100×100 mm 3 within 40 s. The spatial variation of mass density and the volume fraction of an artificial methane hydrate sediment that is either ice or hydrate, hereafter referred to as the hydrate saturation ratio within methane hydrate sediments, were measured using the X-ray CT system. The three-dimensional (3D) distribution change of density and hydrate saturation caused by the hydrate dissociation were also visualized on the basis of the measured gray scale values of the CT images taken before and after their dissociation. The technique allows us observations of the dissociation process of methane hydrate sediment under experimental conditions which are the same as conditions in the natural environment, and will allow the simulation of methane gas production from wells in both oceanic and permafrost areas. Article in Journal/Newspaper Ice Methane hydrate permafrost IOP Publishing Japanese Journal of Applied Physics 44 1A 473 475 |
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description |
A high-speed X-ray computerized tomography (CT) system was developed for measuring the texture of methane hydrate sediment. The system enabled time dependent nondestructive observations of the hydrate sediment in a volume of φ100×100 mm 3 within 40 s. The spatial variation of mass density and the volume fraction of an artificial methane hydrate sediment that is either ice or hydrate, hereafter referred to as the hydrate saturation ratio within methane hydrate sediments, were measured using the X-ray CT system. The three-dimensional (3D) distribution change of density and hydrate saturation caused by the hydrate dissociation were also visualized on the basis of the measured gray scale values of the CT images taken before and after their dissociation. The technique allows us observations of the dissociation process of methane hydrate sediment under experimental conditions which are the same as conditions in the natural environment, and will allow the simulation of methane gas production from wells in both oceanic and permafrost areas. |
format |
Article in Journal/Newspaper |
author |
Sato, Mitsutaka Takeya, Satoshi Nagao, Jiro Jin, Shigeki Kamata, Yasushi Minagawa, Hideki Ebinuma, Takao Narita, Hideo |
spellingShingle |
Sato, Mitsutaka Takeya, Satoshi Nagao, Jiro Jin, Shigeki Kamata, Yasushi Minagawa, Hideki Ebinuma, Takao Narita, Hideo Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography |
author_facet |
Sato, Mitsutaka Takeya, Satoshi Nagao, Jiro Jin, Shigeki Kamata, Yasushi Minagawa, Hideki Ebinuma, Takao Narita, Hideo |
author_sort |
Sato, Mitsutaka |
title |
Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography |
title_short |
Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography |
title_full |
Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography |
title_fullStr |
Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography |
title_full_unstemmed |
Distribution of Hydrate Saturation Ratios in Artificial Methane Hydrate Sediments Measured by High-Speed X-Ray Computerized Tomography |
title_sort |
distribution of hydrate saturation ratios in artificial methane hydrate sediments measured by high-speed x-ray computerized tomography |
publisher |
IOP Publishing |
publishDate |
2005 |
url |
http://dx.doi.org/10.1143/jjap.44.473 https://iopscience.iop.org/article/10.1143/JJAP.44.473 https://iopscience.iop.org/article/10.1143/JJAP.44.473/pdf |
genre |
Ice Methane hydrate permafrost |
genre_facet |
Ice Methane hydrate permafrost |
op_source |
Japanese Journal of Applied Physics volume 44, issue 1R, page 473 ISSN 0021-4922 1347-4065 |
op_rights |
https://iopscience.iop.org/page/copyright https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1143/jjap.44.473 |
container_title |
Japanese Journal of Applied Physics |
container_volume |
44 |
container_issue |
1A |
container_start_page |
473 |
op_container_end_page |
475 |
_version_ |
1810449237234679808 |