Experimental study on seismic attenuation and permeability of large porosity rock

Xiaochen Yang, Kyuro Sasaki, Xiaoming Zhang, Yuichi Sugai

研究成果: ジャーナルへの寄稿記事

抄録

The large porosity areas widely present in the underground resulting from
natural hazards or artificial damages. The porosity and permeability are suggested
to be capable of estimating the mechanical and air flow conditions inside
the porous layer in the underground. To accurately measure the porosity
and permeability in the porous area is imperative. To address this issue, we
experimentally modeled some porous samples in large porosities by using
sandstone particles sieved to different sizes. Ultrasonic was employed to apply
on the porous sandstone samples to characterize the seismic velocity and attenuation. Permeability was also measured simultaneously to find a correlation
with the porosity. The results showed the seismic attenuation decrease as
the reduction of frequency and increasing particle size at the same porosity.
Seismic attenuation was strongly correlated to porosity and particle size. Velocity
showed a good relationship with the porosity change. Permeability was
highly dependent on the particle size especially in the higher porosity range.
The results indicated that it is possible to find a relationship between the permeability and seismic attenuation via the porosity and particle size.
元の言語英語
ページ(範囲)80-90
ページ数11
ジャーナルJournal of Geoscience and Environment Protection
2018
発行部数6
DOI
出版物ステータス出版済み - 5 2018

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seismic attenuation
experimental study
porosity
permeability
rock
particle size
seismic velocity
airflow
hazard
sandstone
damage

これを引用

Experimental study on seismic attenuation and permeability of large porosity rock. / Yang, Xiaochen; Sasaki, Kyuro; Zhang, Xiaoming; Sugai, Yuichi.

:: Journal of Geoscience and Environment Protection, 巻 2018, 番号 6, 05.2018, p. 80-90.

研究成果: ジャーナルへの寄稿記事

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abstract = "The large porosity areas widely present in the underground resulting fromnatural hazards or artificial damages. The porosity and permeability are suggestedto be capable of estimating the mechanical and air flow conditions insidethe porous layer in the underground. To accurately measure the porosityand permeability in the porous area is imperative. To address this issue, weexperimentally modeled some porous samples in large porosities by usingsandstone particles sieved to different sizes. Ultrasonic was employed to applyon the porous sandstone samples to characterize the seismic velocity and attenuation. Permeability was also measured simultaneously to find a correlationwith the porosity. The results showed the seismic attenuation decrease asthe reduction of frequency and increasing particle size at the same porosity.Seismic attenuation was strongly correlated to porosity and particle size. Velocityshowed a good relationship with the porosity change. Permeability washighly dependent on the particle size especially in the higher porosity range.The results indicated that it is possible to find a relationship between the permeability and seismic attenuation via the porosity and particle size.",
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