Foam stability in the presence and absence of hydrocarbons: From bubble- to bulk-scale

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dc.contributor.authorOsei Bonsu, Kofi
dc.contributor.authorShokri, Nima
dc.contributor.authorGrassia, Paul
dc.date2015
dc.date.accessioned2021-04-30T16:47:48Z
dc.date.available2021-04-30T16:47:48Z
dc.description.abstractOne of the pioneering applications of foam is in enhanced oil recovery (EOR). A major stumbling-block to the success of foam application in EOR is the adverse influence of oil on foam stability. The objectives of the present work were to evaluate the effects of various surfactants and hydrocarbons with well-defined properties on foam stability. To do so, we have conducted a comprehensive series of experiments at bulk- and bubble-scale to investigate the foam stability of four surfactants in the absence and presence of three isoparaffins distinguished by their carbon chain length, density and viscosity. For the bulk foam stability experiments, foam was generated by sparging pure air into surfactant solution in a vertical cylindrical column. An automated camera was used to record the gradual decay of foam as a function of time. The results showed the significant impact of the type of the surfactant on foam stability. Besides, our results illustrated less stable foam in the presence of oil with less adverse impact on foam stability as oil viscosity and density increased. The limitation of the method used in the present study to quantify foam stability, i.e., measuring the decay of foam height over a certain period of time, which is a commonly used method in literature, is discussed here and an alternative approach is proposed to investigate foam stability at bubble-scale to supplement and improve understanding of the physical phenomena controlling foam stability. (C) 2015 The Authors. Published by Elsevier B.V.
dc.formatPDF
dc.identifier.citationColloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 481, 514-526, 2015
dc.identifier.doi10.1016/j.colsurfa.2015.06.023
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/3548
dc.language.isoen
dc.publisherELSEVIER
dc.rightsObra bajo licencia Creative Commons Atribución 4.0 Internacional
dc.sourceColloids and Surfaces A: Physicochemical and Engineering Aspects
dc.subject.englishFoam stability
dc.subject.englishFoam oil interaction
dc.subject.englishSurfactant
dc.subject.englishBubble scale visualization
dc.subject.englishOil effects on foam stability
dc.titleFoam stability in the presence and absence of hydrocarbons: From bubble- to bulk-scale
dc.typeArtículo de Revista
uct.catalogadorbmc
uct.comunidadIngeniería
uct.facultadFacultad de Ingeniería
uct.indizacionSCI EXPANDED
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