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Exploring methane-hydrate formation and dissociation in geologic materials through laboratory experiments: Kinetic behavior and morphology ArchiMer
Ruffine, Livio.
To gain in-depth understanding of natural gas hydrate behavior it is necessary to identify key parameters that affect their formation, distribution and destabilization within sediments. Hydrate formation kinetics in porous media is amongst the aspects which deserve important considerations as it may provide useful information on the formation history and the formation mechanisms of natural gas hydrate accumulations. Yet, it is at its early stage. In this paper, experiments on methane hydrate formation and dissociation in porous media are reported and discussed. The first part of this work is devoted to the investigation of the kinetics of methane hydrate formation within silica sand using a custom-design apparatus. The latter is suitable for investigating...
Tipo: Text Palavras-chave: Geologic matrices; Hydrate morphology; Kinetics; Methane hydrates; Novel apparatus.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00245/35580/34209.pdf
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Experimental study of gas hydrate formation and destabilisation using a novel high-pressure apparatus ArchiMer
Ruffine, Livio; Donval, Jean-pierre; Charlou, Jean-luc; Cremiere, Antoine; Zehnder, B. H..
A novel variable-volume type high-pressure apparatus has been designed, constructed and used for gas hydrate investigations. The apparatus has an operating temperature ranging from 253 K to 473 K and pressure ranging from 0.1 MPa to 60 MPa. Its central component consists of a viewing windows cell to which several sensors or analytical instruments can be connected. At its present configuration, a Raman spectrometer and a gas chromatograph are connected for the study of the liquid (or solid) and the gas phases respectively. The apparatus was used for the study of two different systems. The first system was composed of carbon dioxide (CO2) and water for which the hydrate formation and dissolution has been investigated by injecting water into liquid CO2. The...
Tipo: Text Palavras-chave: Gas hydrates; Thermogenic; Carbon dioxide; Formation; Destabilisation; Novel apparatus; Raman spectroscopy; Chromatography.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00006/11759/8472.pdf
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