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

Petroleum Research 2022年第1期7卷 62-76页

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 Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310Johor BahruMalaysia Institute for Oil and Gas Universiti Teknologi Malaysia81310Johor BahruMalaysia School of Chemical Engineering College of EngineeringUniversiti Teknologi MARA40450 Shah AlamSelangorMalaysia

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 *** nanosilica sizes,15 and 70 nm,have been examined *** 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 *** 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 *** 15 nm nanosilica,CO_(2) foam stability shows excellent performance at 0.1 and 0.5 wt%TX100 *** 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 *** partitioning in CO_(2) foams structures demonstrate consistent relation with contact angle *** bubble sizes shows insignificant effect on CO_(2) foams *** 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

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Screening the synergy of sodium dodecylbenzenesulfonate and carboxymethyl cellulose for surfactant-polymer flooding

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Petroleum Research 2022年第3期7卷 308-317页

作者： Suriatie Mat Yusuf Radzuan Junin Mohd Akhmal Muhamad Sidek Augustine Agi Mohd Fazril Irfan Ahmad Fuad Nor Roslina Rosli Norazah Abd Rahman effah yahya Nor Adilah Muhamad Soffian Wong Muhammad Hazim Mustaza Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310Johor BahruMalaysia Institute for Oil and Gas Universiti Teknologi Malaysia81310Johor BahruMalaysia School of Chemical Engineering College of EngineeringUniversiti Teknologi MARA40450Shah AlamSelangorMalaysia

Carboxymethyl cellulose(CMC)has emerged in oil and gas industries as a superior substitution to the conventional HPAM and xanthan gum(XG)for high viscosity polymer flooding *** this study,the combined effect of conventional surfactant,sodium dodecylbenzenesulfonate(SDBS)and CMC for potential surfactant-polymer(SP)flooding in enhanced oil recovery(EOR)has been ***,SDBS–CMC interaction and the functional groups present in CMC were appropriately *** presence of various C–O bonds signifies the existence of carboxymethyl group which greatly influence the rheological properties of CMC *** behaviour of SDBS–CMC was characterized by their viscosity,shear rate,solubilization,wettability,and surface *** flooding utilizing SDBS-CMC was performed and compared to commercial SDBS-XG SP *** results indicate several SDBS-CMC combinations are favourable for EOR *** viscosity shows direct relationship with CMC ***,at any given SDBS concentrations,significant increment was observed at 0.3 wt%and ***,the trend displayed inconclusive relation to SDBS *** of the SDBS-CMC combinations generate Winsor III emulsions particularly at CMC of 0.2 and 0.3 wt%,while Type II were observed in few *** CMC concentrations increased the contact angle,while gradual reductions were observed with SDBS *** gradual reduction in surface tension was highly influenced by the addition of CMC rather than SDBS.A novel combination of 0.3 wt%SDBS and 0.4 wt%CMC possessed an encouraging criterion in term of viscosity,solubilization,and surface tension reduction for EOR *** experiment from several SDBS-CMC combinations proved to recover additional oil ranging 16.4–20.2%of oil initially in place(OIIP).The trend in incremental oil recovery is similar to that of when utilising SDBS-XG.

关键词： Carboxymethyl cellulose Sodium dodecylbenzenesulfonate Enhanced oil recovery Surfactant-polymer flooding

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