Distinguishing the Effect of Rock Wettability from Residual Oil on Foam Generation and Propagation in Porous Media

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dc.citation.firstpage7681en_US
dc.citation.issueNumber9en_US
dc.citation.journalTitleEnergy Fuelsen_US
dc.citation.lastpage7692en_US
dc.citation.volumeNumber35en_US
dc.contributor.authorAmirmoshiri, Mohammadrezaen_US
dc.contributor.authorWang, Xinglinen_US
dc.contributor.authorBai, Chutianen_US
dc.contributor.authorTewari, Raj Deoen_US
dc.contributor.authorXie, Sheena Xinaen_US
dc.contributor.authorBahrim, Ridhwan Zhafri Kamarulen_US
dc.contributor.authorSinger, Philip M.en_US
dc.contributor.authorFarajzadeh, Rouhien_US
dc.contributor.authorBiswal, Sibani Lisaen_US
dc.contributor.authorHirasaki, George. J.en_US
dc.date.accessioned2021-05-24T19:14:59Zen_US
dc.date.available2021-05-24T19:14:59Zen_US
dc.date.issued2021en_US
dc.description.abstractOne of the common challenges of applying foam for enhanced oil recovery is the foam instability in the presence of crude oil and nonwater-wet surfaces. In this experimental study, we systematically distinguish the effect of rock surface wettability from that of crude oil saturation on foam rheology under reservoir conditions. Neutral-wet Berea and reservoir sandstone cores are prepared by aging with crude oil, followed by the wettability index measurements. Transient foam generation and steady-state foam quality scans are conducted in neutral-wet cores, with/without water-flood residual oil. Nuclear magnetic resonance imaging is also utilized to measure the remaining oil saturation at the end of the foam-flood. It is shown that strong foam can be generated in a neutral-wet core with no residual oil because of the solubilization of the adsorbed crude oil components and the wettability alteration toward more water-wet conditions. However, in a neutral-wet core containing residual oil, foam generation is initially hindered. Foam generation occurs after injecting several pore volumes of surfactant solution and increasing the superficial velocity to overcome the minimum pressure gradient required for in situ foam generation. The findings from this study suggest that surface wettability in the presence of bulk oil saturation significantly affects transient foam generation. The final steady-state foam strength becomes comparable to the water-wet and oil-free case once the residual oil saturation is adequately reduced.en_US
dc.identifier.citationAmirmoshiri, Mohammadreza, Wang, Xinglin, Bai, Chutian, et al.. "Distinguishing the Effect of Rock Wettability from Residual Oil on Foam Generation and Propagation in Porous Media." <i>Energy Fuels,</i> 35, no. 9 (2021) American Chemical Society: 7681-7692. https://doi.org/10.1021/acs.energyfuels.0c04247.en_US
dc.identifier.doihttps://doi.org/10.1021/acs.energyfuels.0c04247en_US
dc.identifier.urihttps://hdl.handle.net/1911/110638en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
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.en_US
dc.titleDistinguishing the Effect of Rock Wettability from Residual Oil on Foam Generation and Propagation in Porous Mediaen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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