高钙镁油藏烷醇酰胺类表面活性剂及其复配体系驱油性能研究
|
摘要
针对常规表面活性剂用于高钙镁油藏普遍存在驱油效果不理想、稳定性差和成本较高等问题,合成了系列烷醇酰胺类表面活性剂,表征了其结构,评价了其表面活性,考察了温度、矿化度和钙镁离子质量浓度等对烷醇酰胺类表面活性剂与脂肪醇聚乙烯醚硫酸钠(AES)复配体系驱油性能的影响。结果发现:合成的烷醇酰胺类表面活性剂具有较低的表面张力和临界胶束浓度;合成的十二酸二乙醇酰胺与AES质量比为4∶1的复配体系可使油水界面张力降至3μN/m,且该复配体系在高矿化度、高钙镁离子质量浓度和高温下依然具有较好的降低油水界面张力的性能。研究表明,十二酸二乙醇酰胺在提高高钙镁油藏的驱油效率方面具有良好的应用前景。
In order to solve the problem of poor oil displacement,poor stability and high cost of common surfactants applied in high calcium and magnesium reservoirs,alkanolamide surfactants were synthesized and modeled in the research.In addition,the compound of alkanolamide and AES in high calcium and magnesium reservoirs were investigated systematically,and the effect of temperature,salinity,calcium and magnesium ions concentration on its performance was also studied.Experimental results showed that the synthesized alkanolamide surfactants have low interfacial tension and critical micelle concentration,and diethanolamide laurate/AES(4∶1)could decrease the oil-water interfacial tension to 3μN/m,and performed well under high salinity,elevated calcium and magnesium ions concentration,and high temperature.The compound of alkanolamide and AES has a good application prospect in the flooding of high calcium and magnesium reservoirs.
In order to solve the problem of poor oil displacement,poor stability and high cost of common surfactants applied in high calcium and magnesium reservoirs,alkanolamide surfactants were synthesized and modeled in the research.In addition,the compound of alkanolamide and AES in high calcium and magnesium reservoirs were investigated systematically,and the effect of temperature,salinity,calcium and magnesium ions concentration on its performance was also studied.Experimental results showed that the synthesized alkanolamide surfactants have low interfacial tension and critical micelle concentration,and diethanolamide laurate/AES(4∶1)could decrease the oil-water interfacial tension to 3μN/m,and performed well under high salinity,elevated calcium and magnesium ions concentration,and high temperature.The compound of alkanolamide and AES has a good application prospect in the flooding of high calcium and magnesium reservoirs.
引文
[1]张文柯.表面活性剂驱油体系研究进展[J].广东化工,2013,40(4):164-166.ZHANG Wenke.Progress of research on surfactant oil displacement systems[J].Guangdong Chemical Industry,2013,40(4):164-166.
[2]葛际江,张贵才,蒋平,等.驱油用表面活性剂的发展[J].油田化学,2007,24(3):287-292.GE Jijiang,ZHANG Guicai,JIANG Ping,et al.Development of surfactants as chemicals for EOR[J].Oilfield Chemistry,2007,24(3):287-292.
[3]王友启.胜利油田聚合物驱后二元复合驱油体系优化[J].石油钻探技术,2007,35(5):101-103.WANG Youqi.Optimization of binary combination oil displacement system after polymer flooding in Shengli Oilfield[J].Petroleum Drilling Techniques,2007,35(5):101-103.
[4]张森.烷醇酰胺类表面活性剂的合成及其性能研究[D].济南:山东大学,2015.ZHANG Sen.Synthesis andproperities of alkanolamide surfactant[D].Jinan:Shandong University,2015.
[5]刘玉君.阴离子表面活性剂复配体系在高盐区块的应用[D].青岛:中国海洋大学,2014.LIU Yujun.Application of anionic surfactant mixed system in high salt block[D].Qingdao:Ocean University of China,2014.
[6]李瑞冬,仇珍珠,葛际江,等.羧基甜菜碱-烷醇酰胺复配体系界面张力研究[J].精细石油化工,2012,29(4):8-12.LI Ruidong,QIU Zhenzhu,GE Jijiang,et al.Studies on interfacial tension for carboxylbetaine/alkanolamide compound system[J].Speciality Petrochemicals,2012,29(4):8-12.
[7]冯茹森,蒲迪,周洋,等.混合型烷醇酰胺组成对油/水动态界面张力的影响[J].化工进展,2015,34(8):2955-2960.FENG Rusen,PU Di,ZHOU Yang,et al.Effect of compositions of the mixed alkanolamide on oil/water dynamic interfacial tensions[J].Chemical Industry and Engineering Progress,2015,34(8):2955-2960.
[8]吴松,牛瑞霞,李柏林,等.用于驱油的脂肪酸烷醇酰胺的制备[J].大庆石油学院学报,2005,29(2):51-53.WU Song,NIU Ruixia,LI Bailin,et al.Preparation of fatty acid alkanolamide for flooding[J].Journal of Daqing Petroleum Institute,2005,29(2):51-53.
[9]谢建波.十八烷基双子表面活性剂的合成与性能测定[J].精细石油化工进展,2016,17(4):12-14.XIE Jianbo.Synthesis and performance measurement of octadecyl Gemini surfactants[J].Advances in Fine Petrochemicals,2016,17(4):12-14.
[10]ZHANG Sen,ZHU Pengfei,SUN Yange,et al.Study of the molecular array behaviour of laurel alkanolamide at the oilwater interface and the high interfacial activity enhanced by an inherent synergistic effect[J].RSC Advances,2014,4(79):41831-41837.
[11]朱鹏飞.油/水界面超低界面张力体系设计及机制研究[D].济南:山东大学,2012.ZHU Pengfei.Design and mechanism study of ultra-low interfacial tension for oil/water interface[D].Jinan:Shandong U-niversity,2012.
[2]葛际江,张贵才,蒋平,等.驱油用表面活性剂的发展[J].油田化学,2007,24(3):287-292.GE Jijiang,ZHANG Guicai,JIANG Ping,et al.Development of surfactants as chemicals for EOR[J].Oilfield Chemistry,2007,24(3):287-292.
[3]王友启.胜利油田聚合物驱后二元复合驱油体系优化[J].石油钻探技术,2007,35(5):101-103.WANG Youqi.Optimization of binary combination oil displacement system after polymer flooding in Shengli Oilfield[J].Petroleum Drilling Techniques,2007,35(5):101-103.
[4]张森.烷醇酰胺类表面活性剂的合成及其性能研究[D].济南:山东大学,2015.ZHANG Sen.Synthesis andproperities of alkanolamide surfactant[D].Jinan:Shandong University,2015.
[5]刘玉君.阴离子表面活性剂复配体系在高盐区块的应用[D].青岛:中国海洋大学,2014.LIU Yujun.Application of anionic surfactant mixed system in high salt block[D].Qingdao:Ocean University of China,2014.
[6]李瑞冬,仇珍珠,葛际江,等.羧基甜菜碱-烷醇酰胺复配体系界面张力研究[J].精细石油化工,2012,29(4):8-12.LI Ruidong,QIU Zhenzhu,GE Jijiang,et al.Studies on interfacial tension for carboxylbetaine/alkanolamide compound system[J].Speciality Petrochemicals,2012,29(4):8-12.
[7]冯茹森,蒲迪,周洋,等.混合型烷醇酰胺组成对油/水动态界面张力的影响[J].化工进展,2015,34(8):2955-2960.FENG Rusen,PU Di,ZHOU Yang,et al.Effect of compositions of the mixed alkanolamide on oil/water dynamic interfacial tensions[J].Chemical Industry and Engineering Progress,2015,34(8):2955-2960.
[8]吴松,牛瑞霞,李柏林,等.用于驱油的脂肪酸烷醇酰胺的制备[J].大庆石油学院学报,2005,29(2):51-53.WU Song,NIU Ruixia,LI Bailin,et al.Preparation of fatty acid alkanolamide for flooding[J].Journal of Daqing Petroleum Institute,2005,29(2):51-53.
[9]谢建波.十八烷基双子表面活性剂的合成与性能测定[J].精细石油化工进展,2016,17(4):12-14.XIE Jianbo.Synthesis and performance measurement of octadecyl Gemini surfactants[J].Advances in Fine Petrochemicals,2016,17(4):12-14.
[10]ZHANG Sen,ZHU Pengfei,SUN Yange,et al.Study of the molecular array behaviour of laurel alkanolamide at the oilwater interface and the high interfacial activity enhanced by an inherent synergistic effect[J].RSC Advances,2014,4(79):41831-41837.
[11]朱鹏飞.油/水界面超低界面张力体系设计及机制研究[D].济南:山东大学,2012.ZHU Pengfei.Design and mechanism study of ultra-low interfacial tension for oil/water interface[D].Jinan:Shandong U-niversity,2012.