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dc.contributor.authorYuan, Yujie
dc.contributor.authorRezaee, Reza
dc.date.accessioned2022-11-02T05:51:38Z
dc.date.available2022-11-02T05:51:38Z
dc.date.issued2019
dc.identifier.citationYuan, Y. and Rezaee, R. 2019. Impact of Paramagnetic Minerals on NMR-Converted Pore Size Distributions in Permian Carynginia Shales. Energy and Fuels. 33 (4): pp. 2880-2887.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/89572
dc.identifier.doi10.1021/acs.energyfuels.8b04003
dc.description.abstract

Pore size distribution (PSD) is a fundamental petrophysical parameter for shale formation evaluation. Nuclear magnetic resonance (NMR), performing as a widely acknowledged technique, directly measures transverse relaxation time (T2), which can be converted into PSD via surface relaxivity (SR). Technically, SR is utilized as a constant value in the entire formation, nevertheless, the laboratory calculated SRs revealed that they are likely to vary with mineralogy and can be influenced by Fe-bearing paramagnetic minerals, which could further affect NMR-converted pore structure properties. This study was performed on Permian Carynginia shale samples to compare the NMR-converted PSD with that measured by mercury injection capillary pressure (MICP). The surface relaxivity was calculated from the logarithmic mean T2 value (T2,lm) based on NMR measurement and the surface to volume ratio (SVR) based on low-pressure nitrogen gas adsorption (LP-N2-GA). The results show that Fe-bearing paramagnetic mineral contents are linear positively correlated with SR values, which were calculated to range between 0.08 and 0.32 μm/s in our tested samples. The paramagnetic mineral of higher content expedites the NMR T2 surface relaxation rate, leading to the divergent shifts in NMR- converted PSD curves.

dc.languageEnglish
dc.publisherAMER CHEMICAL SOC
dc.subjectScience & Technology
dc.subjectTechnology
dc.subjectEnergy & Fuels
dc.subjectEngineering, Chemical
dc.subjectEngineering
dc.subjectNUCLEAR-MAGNETIC-RESONANCE
dc.subjectCLAY BOUND WATER
dc.subjectSURFACE RELAXIVITY
dc.subjectGAS-ADSORPTION
dc.subjectPOROSITY MEASUREMENT
dc.subjectNITROGEN ADSORPTION
dc.subjectFRACTAL ANALYSIS
dc.subjectORGANIC-MATTER
dc.subjectAREA
dc.subjectPOROSIMETRY
dc.titleImpact of Paramagnetic Minerals on NMR-Converted Pore Size Distributions in Permian Carynginia Shales
dc.typeJournal Article
dcterms.source.volume33
dcterms.source.number4
dcterms.source.startPage2880
dcterms.source.endPage2887
dcterms.source.issn0887-0624
dcterms.source.titleEnergy and Fuels
dc.date.updated2022-11-02T05:51:37Z
curtin.departmentWASM: Minerals, Energy and Chemical Engineering
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidRezaee, Reza [0000-0001-9342-8214]
curtin.contributor.orcidYuan, Yujie [0000-0003-3931-2071]
curtin.contributor.researcheridRezaee, Reza [A-5965-2008]
dcterms.source.eissn1520-5029
curtin.contributor.scopusauthoridRezaee, Reza [39062014600]


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