TY - GEN
T1 - Gas hydrate
T2 - Methane-hydrate-bearing models based on the apparent permeability and apparent pore-size distribution of artificial and natural methane-hydrate-bearing sediment
AU - Minagawa, Hideki
AU - Sakamoto, Yasuhide
AU - Komai, Takeshi
AU - Miyazaki, Kuniyuki
AU - Narita, Hideo
PY - 2010/1/1
Y1 - 2010/1/1
N2 - In order to clarify the relation between permeability and these properties, the permeability, grain-size distribution, porosity, pore-size distribution, and surface-to-volume ratio of glass beads and sandy sediments have been measured. A semi-empirical (SE) equation for the permeability of glass beads and sandy sediment has been derived based on the Kozeny-Carman equation using pore-size distribution and porosity measured by mercury porosimetry. This SE equation has been approximated by the relation of the porosity, pore-size distribution, tortuosity, and surface-to-volume ratio of the sediment. The permeabilities calculated by the SE equation correspond well to the permeability measured by water flow. Furthermore, techniques for converting NMR-T 2 distribution developed in our previous work were applied in order to obtain the pore-size distribution with higher spatial resolution.
AB - In order to clarify the relation between permeability and these properties, the permeability, grain-size distribution, porosity, pore-size distribution, and surface-to-volume ratio of glass beads and sandy sediments have been measured. A semi-empirical (SE) equation for the permeability of glass beads and sandy sediment has been derived based on the Kozeny-Carman equation using pore-size distribution and porosity measured by mercury porosimetry. This SE equation has been approximated by the relation of the porosity, pore-size distribution, tortuosity, and surface-to-volume ratio of the sediment. The permeabilities calculated by the SE equation correspond well to the permeability measured by water flow. Furthermore, techniques for converting NMR-T 2 distribution developed in our previous work were applied in order to obtain the pore-size distribution with higher spatial resolution.
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U2 - 10.4043/20577-ms
DO - 10.4043/20577-ms
M3 - Conference contribution
AN - SCOPUS:79955875712
SN - 9781617384264
T3 - Proceedings of the Annual Offshore Technology Conference
SP - 1089
EP - 1100
BT - Offshore Technology Conference 2010, OTC 2010
PB - Offshore Technology Conference
ER -