Destabilization, Propagation, and Generation of Surfactant-Stabilized Foam during Crude Oil Displacement in Heterogeneous Model Porous Media

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dc.citation.firstpage739
dc.citation.issueNumber3
dc.citation.journalTitleLangmuir
dc.citation.lastpage749
dc.citation.volumeNumber34
dc.contributor.authorXiao, Siyang
dc.contributor.authorZeng, Yongchao
dc.contributor.authorVavra, Eric D.
dc.contributor.authorHe, Peng
dc.contributor.authorPuerto, Maura
dc.contributor.authorHirasaki, George J.
dc.contributor.authorBiswal, Sibani L.
dc.date.accessioned2018-06-27T15:44:48Z
dc.date.available2018-06-27T15:44:48Z
dc.date.issued2018
dc.description.abstractFoam flooding in porous media is of increasing interest due to its numerous applications such as enhanced oil recovery, aquifer remediation, and hydraulic fracturing. However, the mechanisms of oil-foam interactions have yet to be fully understood at the pore level. Here, we present three characteristic zones identified in experiments involving the displacement of crude oil from model porous media via surfactant-stabilized foam, and we describe a series of pore-level dynamics in these zones which were not observed in experiments involving paraffin oil. In the displacement front zone, foam coalesces upon initial contact with crude oil, which is known to destabilize the liquid lamellae of the foam. Directly upstream, a transition zone occurs where surface wettability is altered from oil-wet to water-wet. After this transition takes place, a strong foam bank zone exists where foam is generated within the porous media. We visualized each zone using a microfluidic platform, and we discuss the unique physicochemical phenomena that define each zone. In our analysis, we also provide an updated mechanistic understanding of the "smart rheology" of foam which builds upon simple "phase separation" observations in the literature.
dc.identifier.citationXiao, Siyang, Zeng, Yongchao, Vavra, Eric D., et al.. "Destabilization, Propagation, and Generation of Surfactant-Stabilized Foam during Crude Oil Displacement in Heterogeneous Model Porous Media." <i>Langmuir,</i> 34, no. 3 (2018) American Chemical Society: 739-749. https://doi.org/10.1021/acs.langmuir.7b02766.
dc.identifier.doihttps://doi.org/10.1021/acs.langmuir.7b02766
dc.identifier.urihttps://hdl.handle.net/1911/102307
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.titleDestabilization, Propagation, and Generation of Surfactant-Stabilized Foam during Crude Oil Displacement in Heterogeneous Model Porous Media
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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