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Characterization of lauryl betaine foam in the Hele-Shaw cell at high foam qualities(80%-98%)

Petroleum Science 2020年第6期17卷 1634-1654页

作者： Asad Hassan Syed nurudeen yekeen Eswaran Padmanabhan Ahmad Kamal Idris Dzeti Farhah Mohshim Department of Petroleum Engineering Faculty of Geoscience and Petroleum Engineering32610 Seri IskandarPerakMalaysia Institute of Hydrocarbon Recovery Universiti Teknologi PETRONAS32610 Bandar Seri IskandarPerakMalaysia

Lauryl betaine(LB)as an amphoteric surfactant carries both positive and negative charges and should be able to generate stable foam through electrostatic interaction with nanoparticles and ***,no previous attempts have been made to investigate the influence of nanoparticles and other co-surfactants on the stability and apparent viscosity of LBstabilized *** this study,a thorough investigation on the influence of silicon dioxide(SiO2)nanoparticles,alpha olefin sulfonate(AOS)and sodium dodecyl sulfate(SDS),on foam stability and apparent viscosity was carried *** experiments were conducted with the 2D Hele-Shaw cell at high foam qualities(80%-98%).Influence of AOS on the interaction between the LB foam and oil was also *** showed that the SiO2-LB foam apparent viscosity decreased with increasing surfactant concentration from 0.1 wt%to 0.3 wt%.0.1 wt%SiO2 was the optimum concentration and increased the 0.1 wt%LB foam stability by 108.65%at 96%foam *** the presence of co-surfactants,the most stable foam,with the highest apparent viscosity,was generated by AOS/LB solution at a ratio of 9:*** emulsified crude oil did not imbibe into AOS-LB foam ***,oil was redirected into the plateau borders where the accumulated oil drops delayed the rate of film thinning,bubble coalescence and coarsening.

关键词： Foam stability Surfactant Nanoparticles Lauryl betaine Foam quality Foam apparent viscosity

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Bulk and bubble-scale experimental studies of influence of nanoparticles on foam stability

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Chinese Journal of Chemical Engineering 2017年第3期25卷 347-357页

作者： nurudeen yekeen Ahmad Kamal Idris Muhammad A.Manan Ali Mohamed Samin Abdul Rahim Risal Tan Xin Kun Department of Petroleum Engineering Faculty of Chemical and Energy EngineeringUniversiti Teknologi Malaysia81310 Johor BahruMalaysia

Influence of silicon oxide(SiO_2) and aluminum oxide(Al_2O_3) nanoparticles on the stability of nanoparticles and sodium dodecyl sulfate(SDS) mixed solution foams was studied at bulk and bubble-scale. Foam apparent viscosity was also determined in Hele-Shaw cell In order to investigate the foam performance at static and dynamic conditions. Results show that the maximum adsorption of surfactant on the nanoparticles occurs at 3 wt% surfactant concentration. Foam stability increases while the foamability decreases with the increasing nanoparticle concentration. However, optimum nanoparticle concentration corresponding to maximum foam stability was obtained at 1.0 wt% nanoparticle concentration for the hydrophilic SiO_2/SDS and Al_2O_3/SDS foams. Foam performance was enhanced with increasing nanoparticles hydrophobicity. Air-foams were generally more stable than CO_2 *** apparent viscosity increased in the presence of nanoparticles from 20.34 mPa·s to 84.84 mPa·s while the film thickness increased from 27.5 μm to 136 μm. This study suggests that the static and dynamic stability of conventional foams could be improved with addition of appropriate concentration of nanoparticles into the surfactant solution. The nanoparticles improve foam stability by their adsorption and aggregation at the foam lamellae to increase film thickness and dilational viscoelasticity. This prevents liquid drainage and film thinning and improves foam stability both at the bulk and bubble scale.

关键词： Foam stability Bubble-scale Bulk-scale Nanoparticles Apparent viscosity

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Experimental investigation of enhancement of carbon dioxide foam stability, pore plugging, and oil recovery in the presence of silica nanoparticles

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Petroleum Science 2019年第2期16卷 344-356页

作者： Abdul Rahim Risal Muhammad A.Manan nurudeen yekeen Nur Bashirah Azli Ali Mohamed Samin Xin Kun Tan Department of Petroleum Engineering Faculty of Petroleum and Renewable Energy Engineering Universiti Teknologi Malaysia Institute of Hydrocarbon Recovery Universiti Teknologi PETRONAS

The influence of surface-modified silica(SiO_2) nanoparticles on the stability and pore plugging properties of foams in porous media was investigated in this study. The pore plugging ability of foams was estimated from the pressure drop induced during foam propagation in porous media. The results clearly showed that the modified Si02 nanoparticlestabilized foam exhibited high stability, and the differential pressure increased in porous media by as much as three *** addition of SiO_2 nanoparticles to the foaming dispersions further mitigated the adverse effect of oil toward the foam pore plugging ability. Consequently, the oil recovery increased in the presence of nanoparticles by approximately 15%during the enhanced oil recovery experiment. The study suggested that the addition of surface-modified silica nanoparticles to the surfactant solution could considerably improve the conventional foam stability and pore plugging performance in porous media.

关键词： Foam Pore plugging Surface-modified nanoparticle Enhanced oil recovery

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