Numerical modeling of gas hydrate bearing Sediments

M. Sanchez*, J. C. Santamarina, A. Shastri, X. Gai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gas hydrates are generally present in oil-producing areas and in permafrost regions. Methane hydrate deposits can lead to large-scale submarine slope failures, blowouts, platform foundation failures, and borehole instability. Gas hydrates constitute also an attractive source of energy as they are estimated to contain very large reserves of methane. Hydrate formation, dissociation and methane production from hydrate bearing sediments are coupled Thermo-Hydro-Mechanical (THM) processes that involve, amongst other, exothermic formation and endothermic dissociation of hydrate and ice phases, mixed fluid flow and large changes in fluid pressure. A THM formulation is briefly presented here. It is composed of mass, momentum and energy balance equations; constitutive equations and equilibrium restrictions. Application cases that show the potential of the proposed approach are presented and discussed.

Original languageEnglish (US)
Title of host publicationProblematic Materials, Environment, Water and Energy
PublisherICE Publishing
Pages2635-2640
Number of pages6
Volume5
ISBN (Electronic)9780727760678
StatePublished - 2015
Externally publishedYes
Event16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015 - Edinburgh, United Kingdom
Duration: Sep 13 2015Sep 17 2015

Other

Other16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015
CountryUnited Kingdom
CityEdinburgh
Period09/13/1509/17/15

ASJC Scopus subject areas

  • Soil Science
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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