Characterization of hydraulic permeability and pore-size distribution of methane-hydrate-bearing sediment using proton nuclear magnetic resonance measurement

Hideki Minagawa, Kosuke Egawa, Yasuhide Sakamoto, Takeshi Komai, Norio Tenma, Hideo Narita

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

Abstract

A proton nuclear magnetic resonance (NMR) system combined with a permeability measurement system has been used to clarify the relation between permeability and methane-hydrate saturation of methanehydrate- bearing sediment with regard to effective pore size distribution. Pore-size distributions of sediments have been calculated using the relaxation time distribution of NMR-T2. Two different laboratory methods of growing gas hydrate in sediment cores have been employed to determine the relationship between hydrate saturation and permeability, a "conventional" approach called the connate water method and a dissolved-gas method. The permeability and pore-size distribution of sediment produced by two different methods differed from each other.

Original languageEnglish
Title of host publicationProceedings of the 9th (2011) ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS 2011
Pages49-53
Number of pages5
Publication statusPublished - 2011 Dec 1
Externally publishedYes
Event9th ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS 2011 - Maui, HI, United States
Duration: 2011 Jun 192011 Jun 24

Publication series

NameProceedings of the ISOPE Ocean Mining Symposium

Other

Other9th ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS 2011
CountryUnited States
CityMaui, HI
Period11/6/1911/6/24

Keywords

  • Methane hydrate saturation
  • Methane-hydrate-bearing sediment
  • NMR
  • Permeability
  • Poresize distribution

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Ocean Engineering

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