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<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd> <responseDate>2018-01-15T18:28:37Z</responseDate> <request identifier=oai:HAL:hal-01174157v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request> <GetRecord> <record> <header> <identifier>oai:HAL:hal-01174157v1</identifier> <datestamp>2018-01-11</datestamp> <setSpec>type:COUV</setSpec> <setSpec>subject:sdu</setSpec> <setSpec>subject:sde</setSpec> <setSpec>collection:CNRS</setSpec> <setSpec>collection:SDE</setSpec> <setSpec>collection:GM</setSpec> <setSpec>collection:GIP-BE</setSpec> <setSpec>collection:AGROPOLIS</setSpec> <setSpec>collection:INSU</setSpec> <setSpec>collection:UNIV-AG</setSpec> <setSpec>collection:B3ESTE</setSpec> <setSpec>collection:UNIV-MONTPELLIER</setSpec> </header> <metadata><dc> <publisher>HAL CCSD</publisher> <title lang=en>Multi-scale X-ray tomography analysis of carbonate porosity</title> <creator>Hebert, Vanessa</creator> <creator>GARING, Charlotte</creator> <creator>Luquot, Linda</creator> <creator>Pezard, Philippe</creator> <creator>Gouze, Philippe</creator> <contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Transferts en milieux poreux ; Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <description>International audience</description> <source>Geological Society Special Publication</source> <identifier>hal-01174157</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-01174157</identifier> <source>https://hal.archives-ouvertes.fr/hal-01174157</source> <source>Geological Society Special Publication, 406, pp.61-79, 2015, Fundamental Controls on Fluid Flow in Carbonates: Current Workflows to Emerging Technologies, 〈10.1144/SP406.12〉</source> <identifier>DOI : 10.1144/SP406.12</identifier> <relation>info:eu-repo/semantics/altIdentifier/doi/10.1144/SP406.12</relation> <language>en</language> <subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject> <subject>[SDE.MCG] Environmental Sciences/Global Changes</subject> <type>info:eu-repo/semantics/bookPart</type> <type>Book sections</type> <description lang=en>The porosity (from values of <1% up to more than 50%, with a mean value of 36.5%) and permeability (from very low values to 20.4 D, with a mean value around 800 mD) of 38 plugs, with a diameter 40 mm, have been measured. These plugs were taken approximately every 1.5 m along a 100 m-long core, sampling a series of reefal carbonate platform lithofacies. A non-unique relationship between porosity and permeability is obtained. In addition, the porosity was measured from processing X-ray micro-tomography images with resolutions ranging from 0.42 to 190.0 µm and sampling volumes ranging from less than 1 µm3 to few cm3. Depending on the structure of the pore network, the computed porosity is, in some cases, controlled by the X-ray image resolution and the sampled volume. While high resolution is required to image micro-porous material, large samples with lower resolution images are necessary for identifying distributed vugs and millimetre-scale structures. This study shows that multi-resolution X-ray micro-tomography is an effective tool for characterizing the multi-scale pore structure of carbonate rocks and understanding how it may control key petrophysical parameters such as porosity and permeability.</description> <date>2015</date> </dc> </metadata> </record> </GetRecord> </OAI-PMH>