Formation & Dissociation of Methane Hydrates in Sediments.Part I : A New Experimental Set-up for Measurements and Modelling at the Core Scale

Olivier Bonnefoy (1, 2, 3) , Jean-Michel Herri (1, 2, 3)

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 GENERIC-ENSMSE - Département Géochimie, environnement, écoulement, réacteurs industriels et cristallisation
3 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires

The ForDiMHyS project is a program devoted to experimental studies and the model development of the kinetics of FORmation and Dissociation of Methane Hydrates in Sediments. The first part of the project that is presented hereafter is designed to obtain experimental data on hydrate formation & dissociation under in-situ temperature and pressure conditions of methane hydrate in well constrained porous materials. The second part presented in another paper (Jeannin et al., 2002) consists in modelling the flows inside the core; a specific numerical model has been developed to simulate the experimental set-up described in part one. The numerical model is 3D three phases and simulates the kinetics of hydrate dissociation and formation, taking into account the solubility of methane in water and the heat of phase transitions.

Mots clés: formation; dissociation; methane hydrates; sediments; porous materials; experimental set-up; kinetics; solubility; methane; water

Domaines: Autre

Olivier Bonnefoy, Jean-Michel Herri. Formation & Dissociation of Methane Hydrates in Sediments.Part I : A New Experimental Set-up for Measurements and Modelling at the Core Scale. 4th International Conference on Gas Hydrates, May 2002, Yokohama, Japan. ⟨hal-00126018⟩