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dc.contributor.authorLiu, Qi
dc.contributor.authorSun, Zhonghao
dc.contributor.authorSantamarina, Carlos
dc.date.accessioned2019-08-18T13:37:23Z
dc.date.available2019-08-18T13:37:23Z
dc.date.issued2019-05-16
dc.identifier.citationLiu, Q., Sun, Z., & Santamarina, J. C. (2019). Transport and Adsorption of Silica Nanoparticles in Carbonate Reservoirs: A Sand Column Study. Energy & Fuels, 33(5), 4009–4016. doi:10.1021/acs.energyfuels.9b00057
dc.identifier.doi10.1021/acs.energyfuels.9b00057
dc.identifier.urihttp://hdl.handle.net/10754/656481
dc.description.abstractThe adsorption of nanoparticles onto mineral surfaces is a major limitation for applications that require long transport distances, such as enhanced oil recovery. This study investigates silica nanoparticle transport and adsorption in long granular columns, with emphasis on the adsorption onto carbonate substrates, given the fact that carbonate reservoirs host more than 60% of the world’s recoverable oil. The grain-scale particle–mineral interactions are characterized by zeta potential measurements. Ionic strength (especially potential-determining ions: Ca2+, Mg2+, CO32–, etc.) inherently influences the zeta potential of carbonates. Derjaguin–Landau–Verwey–Overbeek analyses show that low surface potential and high ionic concentration inhibit the electrostatic double-layer repulsion and lower the energy barrier of adsorption. Adsorption column experiments simulate a variety of fluid chemistry conditions: pH, ionic concentration, and ion type. Alkaline and low-salinity conditions favor silica nanoparticles transport in carbonate reservoirs. Both scanning electron microscopy images and adsorption mass analyses suggest that the adsorption of nanoparticles onto carbonate substrates is multilayered. A two-term adsorption model adequately captures the instantaneous adsorption and the subsequent kinetic adsorption. The instantaneous adsorption constant delays particle transport, and the kinetic adsorption rate determines the concentration profile of nanoparticles along the reservoir at the steady state. High advection velocity and low adsorption rate k1 are required to deliver high nanoparticle concentration to the far field in the reservoir.
dc.description.sponsorshipSupport for this research was provided by the KAUST endowment. G. E. Abelskamp edited the manuscript. Datasets presented as part of this study are available from authors.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acs.energyfuels.9b00057
dc.rightsArchived with thanks to Energy and Fuels
dc.titleTransport and Adsorption of Silica Nanoparticles in Carbonate Reservoirs: A Sand Column Study
dc.typeArticle
dc.contributor.departmentAli I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
dc.contributor.departmentEnergy Resources and Petroleum Engineering
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalEnergy and Fuels
dc.rights.embargodate2020-05-16
dc.eprint.versionPost-print
kaust.personLiu, Qi
kaust.personSun, Zhonghao
kaust.personSantamarina, Carlos


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