表面活性剂驱微观剩余油分布的实验研究  

Experimental Investigation of Micro-scale Residual Oil Distribution After Surfactant Flooding

作　　者：胡章鹏 Hu Zhangpeng(Xi'an Petroleum University,Xi'an 710065,China)

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《山东化工》2022年第6期74-77,共4页Shandong Chemical Industry

摘　　要：表面活性剂驱是以表面活性剂溶液作为驱油剂的一类常用提高原油采收率的方法,表面活性剂能够显著降低两相的界面张力提高洗油效率,研究表面活性剂驱剩余油的分布情况对油藏开发及采收率的提高具有重要意义。本文基于微流控模型实验,对比水驱和表面活性剂驱后的最终采收率及两种不同浓度的表面活性剂驱的微观剩余油分布进行分析研究,研究结果表明注入表面活性剂后采收率明显提高;两种浓度的表面活性剂最终采收率几乎相同。Surfactant flooding is a commonly used method to improve oil recovery using surfactant solutions as oil-displacing agents.Surfactants can significantly reduce the interfacial tension between the two phases and improve the efficiency of oil recovery.The distribution of residual oil is of great significance to the oil reservoirs developments and the improvement of oil recovery.Based on the microfluidic model experiment,this work compareds the final recovery rate after water flooding and surfactant flooding and the remaining oil distribution of two different concentrations of surfactant solutions.The results showed that:oil recovery was significantly improved after surfactant flooding;the final recovery efficiency of the two concentrations of surfactant solution is almost the same.

关 键 词：表面活性剂 采收率 微流控 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]