重烷基苯磺酸盐溶液中混合无机碱对大庆原油界面流变性质的影响
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摘要
为阐明碱对化学驱体系界面性质的影响规律,利用振荡滴方法系统研究了重烷基苯磺酸盐与大庆原油间的界面扩张流变性质,考察了无机碱对重烷基苯磺酸盐-大庆原油界面性质的影响。研究发现,重烷基苯磺酸盐分子与大庆原油中活性组分混合吸附,形成具有一定强度的界面膜,界面扩张模量和相角随重烷基苯磺酸盐质量分数的增加变化较小。无机碱与大庆原油中的石油酸作用,随碱质量分数增大和碱性增强,界面膜强度不断增大。NaOH与重烷基苯磺酸盐之间存在协同效应,明显增大界面扩张模量,有利于原油乳化;而Na2CO3和NaHCO3破坏重烷基苯磺酸盐界面膜的结构,造成界面扩张模量降低。
In order to expound the effect of alkali on the interfacial properties of chemical flooding system,the interfacial rheological properties of film between heavy alkylbenzene sulfonate(HABS)solutions and Daqing crude oil in the absence or presence of alkalis have been systematically studied by oscillating pendant drop method.Results show that the interfacial film with specific strength is formed by adsorbing HABS and active components molecules in crude oil.The modulus and phase angle is slightly varying with the increase of surfactant concentration.However,the strong alkali reacts with the petroleum acids in Daqing crude oil,thus the strength of mixed interfacial film improves gradually with the increases of alkali concentration.It benefits to the formation of crude oil emulsion.On the other hand,weak base destroys the structure of HABS film,resulting in the decrease of modulus.
In order to expound the effect of alkali on the interfacial properties of chemical flooding system,the interfacial rheological properties of film between heavy alkylbenzene sulfonate(HABS)solutions and Daqing crude oil in the absence or presence of alkalis have been systematically studied by oscillating pendant drop method.Results show that the interfacial film with specific strength is formed by adsorbing HABS and active components molecules in crude oil.The modulus and phase angle is slightly varying with the increase of surfactant concentration.However,the strong alkali reacts with the petroleum acids in Daqing crude oil,thus the strength of mixed interfacial film improves gradually with the increases of alkali concentration.It benefits to the formation of crude oil emulsion.On the other hand,weak base destroys the structure of HABS film,resulting in the decrease of modulus.
引文
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[13]方洪波,王磊,宗华,等.胜利原油各组分对界面膜扩张流变性的影响[J].石油学报(石油加工),2011,27(5):746-752.(FANG Hongbo,WANG Lei,ZONG Hua,et al.Effect of Shengli crude oil fractions on dilational rheological properties of interfacial films[J].Acta Petrolei Sinica(Petroleum Processing Section),2011,27(5):746-752.)
[14]ZHU Y W,SONG X W,ZHANG L,et al.Effect of electrolyte on interfacial dilational properties of chemical flooding systems by relaxation measurements[J].Fuel,2011,90(11):3172-3178.
[15]CUI X H,ZHANG L,LUO L,et al.Interfacial dilational properties of model oil and chemical flooding systems by relaxation measurements[J].Colloids&Surfaces A Physicochemical&Engineering Aspects,2010,369(1-3):106-112.
[16]徐志成,安静仪,张路,等.原油乳状液油-水界面上活性物的结构和活性[J].石油学报(石油加工),2003,19(5):1-6.(XU Zhicheng,AN Jingyi,ZHANG Lu,et al.Structures and properties of interfacial active components in crude oil emulsion[J].Acta Petrolei Sinica(Petroleum Processing Section),2003,19(5):1-6.)
[17]WU X L,CHU Y P,HUANG Y P,et al.Effect of alkyl chain length on the interfacial dilational properties of hydroxy-substituted alkyl benzene sulfonates[J].J Dispersion Sci Technol,2016,37(12):1738-1744.
[18]ZHANG L,WANG X C,GONG Q T,et al.Interfacial dilational properties of tri-substituted alkyl benzene sulfonates at air/water and decane/water interfaces[J].J Colloid Interf Sci,2008,327(2):451-458.
[19]束宁凯,徐志成,刘子瑜,等.短链烷基对多取代烷基苯磺酸盐界面性质的影响[J].物理化学学报,2017,33(4):803-809.(SHU Ningkai,XU Zhicheng,LIU Ziyu,et al.Effect of short alkyl chain on the interfacial properties of poly-substituted alkyl benzene sulfonate[J].Acta Phys-Chim,Sin,2017,33(4):803-809.
[2]李寅,杨世忠,牟伯中.十二烷基甜菜碱-重烷基苯磺酸盐/碱复合体系与大庆原油的界面行为[J].油田化学,2010,27(1):88-91.(LI Yan,YANG Shizhong,MOU Bozhong.Interfacial behavior between dodecyl betaineheavy alkylbenzene sulfonate-alkali mixed aqueous system and Daqing crude oil[J].Oilfield Chemistry,2010,27(1):88-91.)
[3]刘必心,侯吉瑞,叶帅斌,等.碱对重烷基苯磺酸盐和无酸油相间界面张力的影响[J].日用化学工业,2011,41(6):395-397+418.(LIU Bixin,HOU Jirui,YE Shuaibin,et al.Effect of alkali on interfacial tension between heavy alkylbenzene sulfonate and acid-free diesel oil[J].China Surfactant Detergent&Cosmetics,2011,41(6):395-397+418.)
[4]罗莉涛,廖广志,刘卫东,等.Marangoni对流启动残余油微观机理[J].石油学报,2015,36(9):1127-1134.(LUO Litao,LIAO Guozhi,LIU Weidong,et al.Micromechanism of residual oil mobilization by Marangoni convection[J].Acta Petrolei Sinica,2015,36(9):1127-1134.)
[5]崔彬,刘卫东,孙灵辉,等.原油与化学驱油体系界面Marangoni对流实验研究[J].日用化学工业,2011,41(5):3 18-321.(CUI Bin,LIU Weidong,SUN Linghui,et al.Study of Marangoni convection experiment between crude oil and chemical flooding systems[J].China Surfactant Detergent&Cosmetics,2011,41(5):318-321.)
[6]SUN H Q,ZHANG L,LI Z Q,et al.Interfacial dilational rheology related to enhance oil recovery[J].Soft Matter,2011,7(17):7601-7611.
[7]ZHOU H,LUO Q,GONG Q T,et al.Interfacial dilational properties of di-substituted alkyl benzene sulfonates at kerosene/water and crude oil/water interface[J].Colloids&Surfaces A Physicochemical&Engineering Aspects,2017,520:561-569.
[8]刘宏生.三元复合驱油体系的界面扩张性质与乳化性能和界面张力的关系[J].石油学报(石油加工),2017,33(1):177-181.(LIU Hongsheng.The correlation of interfacial dilational properties with emulsion and interfacial tension properties of ASP flooding system[J].Acta Petrolei Sinica(Petroleum Processing Section),2017,33(1):177-181.)
[9]HU S S,ZHAN G L,CAO X L,et al.Influence of crude oil components on interfacial dilational properties of hydrophobically modified polyacrylamide[J].Energy&Fuels,2015,29(3):1564-1573.
[10]王宇慧.大庆原油酸性组分界面膜扩张流变研究[J].石油化工高等学校学报,2012,25(2):38-41.(WANG Yuhui.Dilational rheological study of interfacial film containing acidic components from Daqing crude oil[J].Journal of Petrochemical Universities,2012,25(2):38-41.)
[11]司友华,靳志强,丰杰,等.大庆原油含氮组分的界面扩张黏弹性质[J].石油学报(石油加工),2011,27(5):737-745.(SI Youhua,JIN Zhiqiang,FENG Jie,et al.Interfacial dilational viscoelasticity of nitrogen containing components of Daqing crude oil[J].Acta Petrolei Sinica(Petroleum Processing Section),2011,27(5):737-745.)
[12]伍晓林,楚艳苹.大庆原油中酸性及含氮组分对界面张力的影响[J].石油学报(石油加工),2013,29(4):681-686.(WU Xiaolin,CHU Yanping.Effect of acid and nitrogen containing heterocyclic compounds on water-oil interfacial tension of Daqing crude oil[J].Acta Petrolei Sinica(Petroleum Processing Section),2013,29(4):681-686.)
[13]方洪波,王磊,宗华,等.胜利原油各组分对界面膜扩张流变性的影响[J].石油学报(石油加工),2011,27(5):746-752.(FANG Hongbo,WANG Lei,ZONG Hua,et al.Effect of Shengli crude oil fractions on dilational rheological properties of interfacial films[J].Acta Petrolei Sinica(Petroleum Processing Section),2011,27(5):746-752.)
[14]ZHU Y W,SONG X W,ZHANG L,et al.Effect of electrolyte on interfacial dilational properties of chemical flooding systems by relaxation measurements[J].Fuel,2011,90(11):3172-3178.
[15]CUI X H,ZHANG L,LUO L,et al.Interfacial dilational properties of model oil and chemical flooding systems by relaxation measurements[J].Colloids&Surfaces A Physicochemical&Engineering Aspects,2010,369(1-3):106-112.
[16]徐志成,安静仪,张路,等.原油乳状液油-水界面上活性物的结构和活性[J].石油学报(石油加工),2003,19(5):1-6.(XU Zhicheng,AN Jingyi,ZHANG Lu,et al.Structures and properties of interfacial active components in crude oil emulsion[J].Acta Petrolei Sinica(Petroleum Processing Section),2003,19(5):1-6.)
[17]WU X L,CHU Y P,HUANG Y P,et al.Effect of alkyl chain length on the interfacial dilational properties of hydroxy-substituted alkyl benzene sulfonates[J].J Dispersion Sci Technol,2016,37(12):1738-1744.
[18]ZHANG L,WANG X C,GONG Q T,et al.Interfacial dilational properties of tri-substituted alkyl benzene sulfonates at air/water and decane/water interfaces[J].J Colloid Interf Sci,2008,327(2):451-458.
[19]束宁凯,徐志成,刘子瑜,等.短链烷基对多取代烷基苯磺酸盐界面性质的影响[J].物理化学学报,2017,33(4):803-809.(SHU Ningkai,XU Zhicheng,LIU Ziyu,et al.Effect of short alkyl chain on the interfacial properties of poly-substituted alkyl benzene sulfonate[J].Acta Phys-Chim,Sin,2017,33(4):803-809.