双功能团修饰的β-CD包合物的制备及其包合过程研究
本文选题:基质酸化 + 分流转向 ; 参考:《西南石油大学》2015年硕士论文
【摘要】:油酸酰胺丙基甜菜碱(OAPB)用作基质酸化处理碳酸盐储层的酸液体系主剂,以实现酸液的分流,在国内外都引起了广泛的研究,p-环糊精(p-CD)改性得到的性能优良的双功能团修饰的p-环糊精衍生物(Bifu-p-CD)和OAPB一起用于酸液体系的主剂对分流酸的研究意义深远。本文在p-CD分子结构引入羟丙基基团和单硬脂酸所缩水甘油酯基团,得到Bifu-β-CD,并与OAPB发生包合组装得到主客体包合物,然对包合物溶液的表面张力和吸附量进行了研究,最后对加入Bifu-β-CD的基于OAPB的酸液体系的性能进行了评价。本课题研究的具体内容如下: (1)单硬脂酸所缩水甘油酯(GM)、羟丙基-β-环糊精(HP-P-CD)、Bifu-β-CD和OAPB的合成:以硬质酸钠和环氧氯丙烷为原料,加入一定量的相转移催化剂得到GM;β-CD和环氧丙烷在NaOH强碱性环境中反应得到HP-β-CD; HP-β-CD和GM在有机碱吡啶作为溶剂和催化剂的弱碱性环境中合成Bifu-β-CD;通过酰基化和季铵化两步反应得到OAPB。 (2)单硬脂酸所缩水甘油酯(GM)、羟丙基-β-环糊精(HP-β-CD). Bifu-β-CD和OAPB的结构表征:FT-IR和1H NMR证实GM和HP-β-CD的生成;FT-IR、1H NMR和XRD证明GM和HP-β-CD反应得到了一种新物质Bifu-β-CD; FT-IR表明成功合成了OAPB。 (3) Bifu-β-CD和OAPB主客体的构筑:通过超声法得到了Bifu-β-CD和OAPB的包合物,FT-IR和1H NMR证实包合物的生成,SEM直观地观察到包合物的类似网状结构。竞争紫外-可见光谱法得到包合物的包合常数为12.35L/mmol。 (4) Bifu-β-CD对OAPB水溶液以及基于OAPB的酸液体系的影响:Bifu-β-CD可以在一定程度上降低OAPB水溶液的表面张力和静态吸附量,有利于酸化处理初期OAPB的流动,并削弱了其吸附滞留效应。通过对加入Bifu-β-CD的基于OAPB为主剂的酸液体系的性能评价可知,相比于没有加Bifu-β-CD的情况下,加入Bifu-β-CD的基于OAPB为主剂的酸液增黏性能更好,实现了酸液转向分流。
[Abstract]:Oleic acid aminopropylbetaine (OAPB) is used as the main agent of acid system for acidification of carbonate reservoir in order to realize acid separation. The bifunctional modified p-cyclodextrin derivatives (Bifu-p-CD) modified by p-CD and OAPB have been widely studied at home and abroad. In this paper, we introduce hydroxypropyl group and glycidyl group of monostearic acid into p-CD molecular structure to obtain Bifu- 尾 -CD. and assemble with OAPB to get host and guest inclusion complex. However, the surface tension and adsorption capacity of inclusion complex solution are studied. Finally, the performance of OAPB based acid system with Bifu- 尾-CD was evaluated. The main contents of this paper are as follows: (1) Synthesis of monostearic acid glycidyl ester (GM), hydroxypropyl 尾 -cyclodextrin (HP-P-CD), Bifu- 尾 -CD and OAPB: using sodium stearate and epichlorohydrin as raw materials, adding a certain amount of phase transfer catalyst to get GM; HP- 尾 -CD was obtained by reaction of 尾 -CD with propylene oxide in NaOH strong alkaline environment; HP- 尾 -CD and GM synthesized Bifu- 尾 -CDin in weakly alkaline environment with organic base pyridine as solvent and catalyst; OAPB. (2) monostearin was obtained by acylation and quaternary ammonium reaction. (2) Glycidyl acid (GM), hydroxypropyl 尾 -cyclodextrin (HP- 尾 -CD). The structures of Bifu- 尾 -CD and OAPB were characterized by FT-IR and 1H NMR. The formation of GM and HP- 尾 -CD was confirmed by FT-IR and 1H NMR. FT-IR1H NMR and XRD proved that GM reacted with HP- 尾 -CD to obtain a new substance Bifu- 尾 -CD-CD.FT-IR showed that OAPB was successfully synthesized. (3) the host and guest structures of Bifu- 尾 -CD and OAPB were successfully synthesized. The inclusion complexes of Bifu- 尾 -CD and OAPB were obtained by ultrasonic method. FT-IR and 1H NMR proved that the inclusion complexes were bifu- 尾 -CD and OAPB. The similar network structure of the inclusion compound was observed directly by SEM. The inclusion constant was 12.35 L / mmol. (4) the influence of Bifu- 尾 -CD on OAPB aqueous solution and OAPB-based acid system was obtained by competitive UV-Vis spectroscopy. To some extent, the surface tension and static adsorption capacity of OAPB aqueous solution could be reduced by: Bifu- 尾 -CD. It is advantageous to the flow of OAPB in the initial stage of acidification treatment and weakens the adsorption and retention effect of OAPB. Through the performance evaluation of the OAPB based acid system with Bifu- 尾 -CD, it can be seen that the acid system with Bifu- 尾 -CD is better in viscosity enhancement than that without Bifu- 尾 -CD, and the acid diversion is realized.
【学位授予单位】:西南石油大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:TE357.2;O647.2
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