Field scale simulation for the effect of relative permeability on dissociation and gas production behavior during depressurization process of methane hydrate in marine sediments

Y. Sakamoto, T. Komai, T. Kawamura, N. Tenma, T. Yamaguchi

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

18 Citations (Scopus)

Abstract

Methane hydrate (MH) is one of the potential resources of natural gas. We have developed a numerical model for MH dissociation process in porous media to analyze the physical phenomena in a MH reservoir and predict gas production behavior during MH dissociation. Absolute permeability and. relative permeability with MH formation were formulated with our experimental results and introduced into the simulator. Then, MH reservoir model in the adjacent Sea of Japan was constructed on the basis of the results of the preliminary drilling 2003 in Nankai trough area. Using this simulator, some field, scale simulation run for depressurization process was carried out to discuss the effect of absolute permeability, relative permeability and MH saturation on MH dissociation and gas production behavior.

Original languageEnglish
Title of host publicationProceedings of The Seventh 2007 ISOPE Ocean Mining (and Gas Hydrates) Symposium
Pages102-107
Number of pages6
Publication statusPublished - 2007 Oct 1
Externally publishedYes
Event7th 2007 ISOPE Ocean Mining (and Gas Hydrates) Symposium - Lisbon, Portugal
Duration: 2007 Jul 12007 Jul 6

Publication series

NameProceedings of the ISOPE Ocean Mining Symposium

Other

Other7th 2007 ISOPE Ocean Mining (and Gas Hydrates) Symposium
CountryPortugal
CityLisbon
Period07/7/107/7/6

Keywords

  • Absolute permeability
  • Depressurization
  • Dissociation
  • Gas hydrate
  • Marine sediment
  • Methane
  • Relative permeability
  • Simulation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Ocean Engineering

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