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dc.contributor.authorPrather, Cody A.
dc.contributor.authorBray, J. M.
dc.contributor.authorSeymour, Joseph D.
dc.contributor.authorCodd, Sarah L.
dc.date.accessioned2016-12-23T21:05:36Z
dc.date.available2016-12-23T21:05:36Z
dc.date.issued2016-02
dc.identifier.citationPrather CA, Bray JM, Seymour JD, Codd SL “NMR study comparing capillary trapping in Berea sandstone of air, carbon dioxide, and supercritical carbon dioxide after imbibition of water,” Water Resour. Res., 2016 Feb; 52:713–724.en_US
dc.identifier.issn0043-1397
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/12403
dc.description.abstractNuclear magnetic resonance (NMR) techniques were used to study the capillary trapping mechanisms relevant to carbon sequestration. Capillary trapping is an important mechanism in the initial trapping of supercritical CO2 in the pore structures of deep underground rock formations during the sequestration process. Capillary trapping is considered the most promising trapping option for carbon sequestration. NMR techniques noninvasively monitor the drainage and imbibition of air, CO2, and supercritical CO2 with DI H2O at low capillary numbers in a Berea sandstone rock core under conditions representative of a deep underground saline aquifer. Supercritical CO2 was found to have a lower residual nonwetting (NW) phase saturation than that of air and CO2. Supercritical CO2 behaves differently than gas phase air or CO2 and leads to a reduction in capillary trapping. NMR relaxometry data suggest that the NW phase, i.e., air, CO2, or supercritical CO2, is preferentially trapped in larger pores. This is consistent with snap-off conditions being more favorable in macroscale pores, as NW fluids minimize their contact area with the solid and hence prefer larger pores.en_US
dc.titleNMR study comparing capillary trapping in Berea sandstone of air, carbon dioxide, and supercritical carbon dioxide after imbibition of wateren_US
dc.typeArticleen_US
mus.citation.extentfirstpage713en_US
mus.citation.extentlastpage724en_US
mus.citation.issue2en_US
mus.citation.journaltitleWater Resources Researchen_US
mus.citation.volume52en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.categoryHealth & Medical Sciencesen_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1002/2015wr017547en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentCell Biology & Neuroscience.en_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentEnvironmental Engineering.en_US
mus.relation.departmentMicrobiology & Immunology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.data.thumbpage719en_US


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