Gas hydrate: Methane-hydrate-bearing models based on the apparent permeability and apparent pore-size distribution of artificial and natural methane-hydrate-bearing sediment

Hideki Minagawa, Yasuhide Sakamoto, Takeshi Komai, Kuniyuki Miyazaki, Hideo Narita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationOffshore Technology Conference 2010, OTC 2010
PublisherOffshore Technology Conference
Pages1089-1100
Number of pages12
ISBN (Print)9781617384264
DOIs
Publication statusPublished - 2010 Jan 1
Externally publishedYes

Publication series

NameProceedings of the Annual Offshore Technology Conference
Volume2
ISSN (Print)0160-3663

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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