一种两性离子型分子膜驱油剂的合成与渗吸驱油机理研究  

Synthesis of a kind of amphoteric ionic molecular membrane oil displacement agent and study of the spontaneous imbibition displacement efficiency mechanism

作　　者：唐炼[1] 张融[1] 陈世军[2] 吴亚[2] 

机构地区：[1]中国石油大学(北京)理学院,北京102249 [2]西安石油大学化学化工学院,陕西西安710065

出　　处：《应用化工》2017年第4期625-628,共4页Applied Chemical Industry

基　　金：国家科技支撑计划项目(2012BAC26B00)

摘　　要：以氯乙酸、二甲胺和氯乙醇等为原料,合成了一种两性离子型分子膜驱油剂。通过红外光谱、核磁共振、质谱,对分子膜驱油剂的结构进行了表征。考察了分子膜驱油剂的渗吸驱油机理,并利用核磁岩心技术测试了驱油剂的渗吸驱油效率。结果表明,合成的分子膜驱油分子结构表征与设计的两性离子分子式一致;渗吸实验表明,分子膜驱油剂更有利于低渗透油藏的开发,低渗透油藏渗吸速率、渗吸效率更高;渗吸机理研究表明随着分子膜驱油剂的加入,润湿指数提高,岩心表面向亲水性转变。核磁共振岩心测试表明,驱油剂在低渗透油藏驱油效率14.5%。A kind of amphoteric ionic molecular membrane oil displacement agent （MD） was synthesized with epichlorohydrin, dimethylamine and chloroethanol as the raw materials. It characterize the molecular membrane oil displacement agent of molecular structure of by infrared spectroscopy nuclear magnetic reso- nance （NMR）,mass spectrometry; Investigates the molecular membrane permeability suck oil displace- ment mechanism of oil displacement agent, testing for oil displacement agent of permeability oil displace- ment efficiency by using nuclear magnetic core technology. The results show that the synthesis of molecu- lar membrane oil displacement substructure characterization of zwitterionic formula is consistent with de- sign; Molecular film of oil displacement agent permeability experimental results show that the absorption oil displacement agent of molecular membrane is more advantageous to the development of low permeabili- ty reservoirs, low permeable reservoir permeability rate of absorption, permeability absorption efficiency is higher; Molecular membrane permeability absorption mechanism of oil displacement agent research shows that as the molecular film of oil displacement agent, wetting index increased, the surface of the core to hy- drophilic. By nuclear magnetic resonance （NMR） core technology test shows that oil displacement agent in low permeability reservoirs efficiency was 14.5%.

关 键 词：驱油剂 分子膜 渗吸 驱油效率 

分 类 号：TQ326.4[化学工程—合成树脂塑料工业] TE355[石油与天然气工程—油气田开发工程]