空气泡沫驱油室内实验研究  

The experimental study on air-foam flooding

作　　者：赵田红[1,2] 蒲万芬[2,3] 金发扬[2,3] 孙琳[2,3] 田园媛[2,3] 

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]油气藏地质及开发工程国家重点实验室,四川成都610500 [3]西南石油大学石油工程学院,四川成都610500

出　　处：《计算机与应用化学》2013年第9期1007-1010,共4页Computers and Applied Chemistry

摘　　要：针对ZY油田的油藏高温高盐的特点,筛选出了空气泡沫驱的起泡剂配方,该体系在温度90℃、120℃条件时,矿化度达到25×104mg/L条件下老化2-3个月后,起泡体积仍可保持在(600~700)ml范围,有良好的稳泡性能;起泡体系与ZY原油的界面张力可达到10^(-2)mN/m,表明该起泡体系有一定的降低界面张力能力;室内填砂管物理模拟实验研究表明,与空气驱和表面活性剂驱相比,空气泡沫调驱体系可在水驱后更有效地提高采收率;微观驱油实验表明空气泡沫驱可通过抑制粘性指进,改变流体方向来提高驱油效率。A new foaming agent system was screened to investigate the feasibility of air-foam flooding EOR technology for high temperature and high salinity reservoir in ZY oiffield. The bubble volume of this system can be maintained in the range of （600-700） ml in the condition of 120 ℃ and a salinity of 20× 104 mg/L after aging for （2-3） months, which shows a good foam stabilization performance. Simultaneously, an interfacial tension of 10-2 mN/m can be achieved between the system and crude oil, which suggests that this system has a capability of reducing the interfacial tension. In order to evaluate the displacement effect, sand pack physical simulation experiments on this system was conducted, and the result shows air-foam flooding can enhance oil recovery more efficiently after water flooding, compared with air displacement and surfactant flooding. From the microscopic oil displacement experiment, we can observe that air-foam flooding may change the direction of liquid flow by controlling viscous fingering, and thus, can farther improve the displacement efficiency.

关 键 词：ZY油田 起泡剂 空气泡沫驱 物理模拟实验 微观驱油实验 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]