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Experimental investigation into the production behavior of methane hydrate in porous sediment with hot brine stimulation / Xiao-Sen Li in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9696–9702 Titre : Experimental investigation into the production behavior of methane hydrate in porous sediment with hot brine stimulation Type de document : texte imprimé Auteurs : Xiao-Sen Li, Auteur ; Li-Hua Wan, Auteur ; Gang Li, Auteur Année de publication : 2009 Article en page(s) : p. 9696–9702 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Experimental  investigation  Methane  hydrate  Porous  sediment  Hot  brine  stimulation Résumé : The gas production behavior from methane hydrate in porous sediment by injecting the brine with the salinity of 0−24 wt % and the temperature of −1 to 130 °C was investigated in a one-dimensional experimental apparatus. The results show that the gas production process consists of three periods: the free gas production, the hydrate dissociation, and the general gas reservoir production. The hydrate dissociation accompanies the temperature decrease with the injection of the brine (NaCl solution), and the dissociation duration is shortened with the increase of the salinity. With the injection of hot brine, instantaneous hydrate dissociation rate also increases with the increase of the salinity. However, while the NaCl concentration is beyond a certain value, the rate has no longer continued increasing. Thermal efficiency and energy ratio for the hydrate production can be enhanced by injecting hot brine, and the enhanced effectiveness is quite good with the injection of high salinity at lower temperature. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8009582 [article] Experimental investigation into the production behavior of methane hydrate in porous sediment with hot brine stimulation [texte imprimé] / Xiao-Sen Li, Auteur ; Li-Hua Wan, Auteur ; Gang Li, Auteur . - 2009 . - p. 9696–9702. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9696–9702 Mots-clés : Experimental  investigation  Methane  hydrate  Porous  sediment  Hot  brine  stimulation Résumé : The gas production behavior from methane hydrate in porous sediment by injecting the brine with the salinity of 0−24 wt % and the temperature of −1 to 130 °C was investigated in a one-dimensional experimental apparatus. The results show that the gas production process consists of three periods: the free gas production, the hydrate dissociation, and the general gas reservoir production. The hydrate dissociation accompanies the temperature decrease with the injection of the brine (NaCl solution), and the dissociation duration is shortened with the increase of the salinity. With the injection of hot brine, instantaneous hydrate dissociation rate also increases with the increase of the salinity. However, while the NaCl concentration is beyond a certain value, the rate has no longer continued increasing. Thermal efficiency and energy ratio for the hydrate production can be enhanced by injecting hot brine, and the enhanced effectiveness is quite good with the injection of high salinity at lower temperature. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8009582