The effect of nanosilica sizes in the presence of nonionic TX100 surfactant on CO_(2)foam flooding  

作　　者：Suriatie Mat Yusuf Radzuan Junin Mohd Akhmal Muhamad Sidek Muhammad AManan Mohd Fazril Irfan Ahmad Fuad Mohd Zaidi Jaafar Effah Yahya Nor Roslina Rosli 

机构地区：[1]Department of Petroleum Engineering,School of Chemical and Energy Engineering,Faculty of Engineering,Universiti Teknologi Malaysia,81310,Johor Bahru,Malaysia [2]Institute for Oil and Gas,Universiti Teknologi Malaysia,81310,Johor Bahru,Malaysia [3]School of Chemical Engineering,College of Engineering,Universiti Teknologi MARA,40450 Shah Alam,Selangor,Malaysia

出　　处：《Petroleum Research》2022年第1期62-76,共15页石油研究（英文）

摘　　要：The aim of this research is to study the effect of hydrophilic silica nanoparticles,sizes as CO_(2) foam stabilizer in the presence of nonionic TX100 surfactant.Two nanosilica sizes,15 and 70 nm,have been examined thoroughly.Physisorption of TX100 on silica nanoparticles(nanosilica)was characterized by adsorption isotherm and surface tension measurement,while CO_(2) foams stability was quantified based on their foamability,foam stability,particle partitioning in the foams,and bubble sizes.Results show that direct contact of TX100 with nanosilica does altered the wettability of hydrophilic nanosilica surface,enable them to lengthen CO_(2) foams life at certain surfactant and nanoparticles concentrations.For 15 nm nanosilica,CO_(2) foam stability shows excellent performance at 0.1 and 0.5 wt%TX100 concentrations.As for 70 nm nanosilica,CO_(2) foam demonstrates longer lifetime at much lower TX100 concentration,0.01 wt%.Without the presence of TX100,CO_(2) foams exhibit undesirable lifetime performances for both nanosilica sizes.Nanosilica partitioning in CO_(2) foams structures demonstrate consistent relation with contact angle measurement.Estimated bubble sizes shows insignificant effect on CO_(2) foams life.With the assists of nanosilica and TX100,enhanced oil recovery via CO_(2) foam injection succeeds in increasing oil production by 13e22%of original oil-in-place(OOIP).

关 键 词：Nanoparticle sizes Adsorption Nonionic surfactant TX100 surfactant FOAMABILITY CO_(2)foam stability CO_(2)foam flooding EOR 

分 类 号：O62[理学—有机化学]