Preparation and application of high efficiency oil displacement surfactant
YANG Jian1, BAI Yu-jun1, LI Dong-xu1, SHE Li-jun1, WAN Wen-jie1, FEI Gui-qiang2, XIE Ying2
1. Oil Production Plant No. 1, CNPC Changqing Oilfield Company, Yan'an 716000, China; 2. Key Laboratory of Auxiliary Chemistry & Technology for Light Chemical Industry of Ministry of Education, Shaanxi University of Science & Technology, Xi'an 710021, China
摘要 以丁二酸酐、2-[2-(二甲基氨基)乙氧基]乙醇和溴代十六烷(C16H33Br)为原料,合成了一种酯基型Gemini双季铵表面活性剂(简称为GS16-EEG-16)。采用红外光谱(FT-IR)和核磁共振光谱(1H-NMR)对产物结构进行表征。复配得到最终配方为8 g SAS-60、3 g 6501、3 g吐温80和0.6 g GS16-EEG-16。性能测试结果表明,随着复配体系中GS16-EEG-16质量的增加,表面活性剂越易聚集缔合成胶束。0.6 g双子加量的表面活性剂复配体系乳化系统中,油/水分离时间达到96 min,且在聚四氟乙烯板(简称PTFE)上的接触角为63°,说明其具有很好的乳化性能和润湿性能。0.6 g双子加量的表面活性剂复配体系仅用28 min便可将油/水界面张力降低至1.9×10-3 mN/m,最终驱油效率达52.5%。
Abstract: An ester-based gemini double quaternary ammonium salts surfactant (GS16-EEG-16) is prepared with succinic anhydride,2-ethanol and C16H33Br as raw materials.The obtained product is characterized by FT-IR and 1H-NMR.And the final compound formulation includes 8 g of SAS-60,3 g of 6501,3 g of Tween 80 and 0.6 g of GS16-EEG-16.The results from performance determination show that the surfactant becomes more easily aggregated into micelles with the increase of the mass amount of GS16-EEG-16 in the compound system.The results of emulsification and wet ability test show that the oil/water separation time reach 96 min in the emulsification system of 0.6 gram gemetic additive surfactant compound system and the contact angle on PTFE is 63°,indicating that it has good emulsifying properties and wetting properties.With the 0.6 gram gemetic additive surfactant compound system,the interfacial tension of oil/water can be reduced to 1.9×10-3 mN·m-1 in 28 minutes only,and the final oil displacement efficiency is 52.5%.
杨剑, 白玉军, 李东旭, 折利军, 万文杰, 费贵强, 解颖. 高效驱油表面活性剂的制备与应用研究[J]. 现代化工, 2018, 38(5): 90-94.
YANG Jian, BAI Yu-jun, LI Dong-xu, SHE Li-jun, WAN Wen-jie, FEI Gui-qiang, XIE Ying. Preparation and application of high efficiency oil displacement surfactant. Modern Chemical Industry, 2018, 38(5): 90-94.
[1] Wu S,Han P,Chen G,et al.Nonlinear rheological behavior of a novel oil displacing agent[J].Journal of Applied Polymer Science,2014,131(19):5829-5836. [2] Yan L,Yin T,Yu W,et al.A water-soluble oil-displacing agent with tracer properties for enhancing oil recovery[J].Rsc Advances,2015,5(53):42843-42847. [3] Rostami A,Hashemi A,Takassi M A,et al.Experimental assessment of a lysine derivative surfactant for enhanced oil recovery in carbonate rocks:Mechanistic and core displacement analysis[J].Journal of Molecular Liquids,2017,232:310-318. [4] Nandwani S K,Malek N I,Lad V N,et al.Study on interfacial properties of Imidazolium ionic liquids as surfactant and their application in enhanced oil recovery[J].Colloids & Surfaces A Physicochemical & Engineering Aspects,2017,516:383-393. [5] Bera A,Mandal A,Belhaj H,et al.Enhanced oil recovery by nonionic surfactants considering micellization,surface,and foaming properties[J].Petroleum Science,2017,14:362-371. [6] Najafi S A S,Kamranfar P,Madani M,et al.Experimental and theoretical investigation of CTAB microemulsion viscosity in the chemical enhanced oil recovery process[J].Journal of Molecular Liquids,2017,232:382-389. [7] 鲁红升,唐昌强,黄志宇.阴阳离子表面活性剂复配型泡排剂的性能[J].精细化工,2013,30(8):884-935. [8] 鲁红升,唐昌强,黄志宇.阴阳离子表面活性剂复配型起泡剂研究[J].石油钻采工艺,2013(2):98-102. [9] 赵国玺,程玉珍,欧进国,等.正离子表面活性剂与负离子表面活性剂在水溶液中的相互作用[J].化学学报,1980(5):5-17. [10] 韩霞,程新皓,王江,等.阴阳离子表面活性剂体系超低油水界面张力的应用[J].物理化学学报,2012,28(1):146-153. [11] Stellner K L,Amante J C,Scamehorn J F,et al.Precipitation phenomena in mixtures of anionic and cationic surfactants in aqueous solutions[J].Journal of Colloid & Interface Science,1988,123(1):186-200. [12] Chang H,Wang Y,Cui Y,et al.Equilibrium and dynamic surface tension properties of Gemini quaternary ammonium salt surfactants with hydroxyl[J].Colloids & Surfaces A Physicochemical & Engineering Aspects,2016,500:230-238. [13] 徐桂英,栾玉霞,刘静,等.稳态荧光法研究表面活性剂/大分子相互作用[J].物理化学学报,2005,21(5):577-582. [14] 刘鹏,王业飞,张国萍,等.表面活性剂驱乳化作用对提高采收率的影响[J].油气地质与采收率,2014,21(1):99-102. [15] 元福卿,刘丹丹,郭兰磊,等.支链化阳离子和甜菜碱表面活性剂对聚四氟乙烯表面润湿性的影响[J].物理化学学报,2015(4):715-721. [16] 卫龙,杨剑,董小丽,等.非离子表面活性剂对阴/阳离子复配表面活性剂性能的影响[J].石油化工,2015,44(5):602-606.