Experimental Studies on Coal Matrix Swelling Due to Carbon Dioxide Adsorption and Its Effect on Coal Permeability
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- XUE Ziqiu
- Research Institute of Innovative Technology for the Earth
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- OHSUMI Takashi
- Research Institute of Innovative Technology for the Earth
Bibliographic Information
- Other Title
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- 二酸化炭素吸着に伴う石炭の膨潤特性及び浸透性への影響に関する実験的研究
- 二酸化炭素吸着に伴う石炭の膨潤特性及び浸透性への影饗に関する実験的研究
- 2サンカタンソ キュウチャク ニ トモナウ セキタン ノ ボウジュントクセイ オヨビ シントウセイ エ ノ エイキョウ ニ カンスル ジッケンテキ ケンキュウ
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Description
Laboratory measurements on coal matrix swelling were carried out during CO2 injection, by monitoring strain and P-wave velocity changes. Cylindrical Coal samples were drilled from large blocks collected from Kushiro Coal Mine, Hokkaido. Fractured and intact samples were used to investigate swelling behaviors and its effect on permeability, respectively. Swelling strains are much larger due to CO2 adsorption compared to N2 adsorption at the same coal sample. Results of the intact coal sample show that the sample permeability decreased by about 50% associated with CO2 adsorption. Both P-wave velocity and amplitude increased significantly caused by the coal matrix swelling. Our results suggest that coal matrix swelling due to CO2 adsorption caused cleat closure and the cleat closure reduced coal permeability.
Journal
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- Shigen-to-Sozai
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Shigen-to-Sozai 121 (6), 231-239, 2005
The Mining and Materials Processing Institute of Japan
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Details 詳細情報について
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- CRID
- 1390282681026917120
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- NII Article ID
- 10016467068
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- NII Book ID
- AN10062646
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- COI
- 1:CAS:528:DC%2BD2MXmtVCit7w%3D
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- ISSN
- 18806244
- 09161740
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- NDL BIB ID
- 7412526
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed