A 2-D simulation study on CO2ﾠsoluble surfactant for foam enhanced oil recovery

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dc.citation.firstpage133
dc.citation.journalTitleJournal of Industrial and Engineering Chemistry
dc.citation.lastpage143
dc.citation.volumeNumber72
dc.contributor.authorZeng, Yongchao
dc.contributor.authorFarajzadeh, Rouhi
dc.contributor.authorBiswal, Sibani L.
dc.contributor.authorHirasaki, George J.
dc.date.accessioned2019-08-12T17:16:51Z
dc.date.available2019-08-12T17:16:51Z
dc.date.issued2019
dc.description.abstractThis paper probes the transport of CO2ﾠsoluble surfactant for foaming in porous media. We numerically investigate the effect of surfactant partitioning between the aqueous phase and the gaseous phase on foam transport for subsurface applications when the surfactant is injected in the CO2ﾠphase. A 2-D reservoir simulation is developed to quantify the effect of surfactant partition coefficient on the displacement conformance and CO2ﾠsweep efficiency. A texture-implicit local-equilibrium foam model is embedded to describe how the partitioning of surfactant between water and CO2ﾠaffects the CO2ﾠfoam mobility control when surfactant is injected in the CO2ﾠphase. We conclude that when surfactant has approximately equal affinity to both the CO2ﾠand the water, the transport of surfactant is in line with the gas propagation and therefore the sweep efficiency is maximized. Too high affinity to water (small partition coefficient) results in surfactant retardation whereas too high affinity to CO2ﾠ(large partition coefficient) leads to weak foam and insufficient mobility reduction. This work sheds light upon the design of water-alternating-gas-plus-surfactant-in-gas (WAGﾠ+ﾠS) process to improve the conventional foam process with surfactant-alternating-gas (SAG) injection mode during which significant amount of surfactant could possibly drain down by gravity before CO2ﾠslugs catch up to generate foam in situ the reservoir.
dc.identifier.citationZeng, Yongchao, Farajzadeh, Rouhi, Biswal, Sibani L., et al.. "A 2-D simulation study on CO2ﾠsoluble surfactant for foam enhanced oil recovery." <i>Journal of Industrial and Engineering Chemistry,</i> 72, (2019) Elsevier: 133-143. https://doi.org/10.1016/j.jiec.2018.12.013.
dc.identifier.doihttps://doi.org/10.1016/j.jiec.2018.12.013
dc.identifier.urihttps://hdl.handle.net/1911/106216
dc.language.isoeng
dc.publisherElsevier
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier.
dc.subject.keywordNonionic surfactant
dc.subject.keywordPartition coefficient
dc.subject.keywordCO2
dc.subject.keywordFoam
dc.subject.keywordGas breakthrough
dc.subject.keywordMobility control
dc.subject.keywordEnhanced oil recovery (EOR)
dc.subject.keywordFoam simulation
dc.titleA 2-D simulation study on CO2ﾠsoluble surfactant for foam enhanced oil recovery
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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