空气泡沫在非均质油藏中渗流能力的实验研究  

Experimental study on flow properties of air foam in heterogeneous reservoir

作　　者：黄春霞 郭茂雷 余华贵 张新春[2] 张冠华[2] 周海成[2] 

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,西安710075 [2]延长油田股份有限公司甘谷驿采油厂勘探开发研究所,陕西延安716005

出　　处：《岩性油气藏》2014年第2期128-132,共5页Lithologic Reservoirs

基　　金：陕西延长石油(集团)有限责任公司科研项目"延长东部油区空气泡沫驱配套技术研究及先导试验"(编号:ycsy2010-ky-A-12)资助

摘　　要：利用实验分析了空气泡沫在不同渗透率、不同气液比的单管均质岩心模型中的渗流能力及其影响因素,并研究了不同渗透率级差双管并联模型中产出液分流量的变化。实验结果表明:气液比越大,泡沫渗流阻力越大;随着岩心渗透率和泡沫注入量的增加,岩心中泡沫阻力系数增大,封堵能力增强;泡沫在非均质地层中具有很好的液流转向能力,但随着渗透率级差的增大,液流转向能力变弱。This paper analyzed the percolation capacity and influencing factors of air foam in single homogeneous cores with different permeabilities and different gas-liquid ratios, and studied the fractional flow rates of parallel cores with different permeability ratios. The experimental results indicate that the larger the gas-liquid ratio is, the larger the flow resistance of foam system is; with the increase of permeability and volume of foam system injected, the resistance factor gets larger, and the blocking ability of foam system increases; the fluid diversion capacity is good while foam flow in hetero- geneous reservoir, but with the increase of permeability ratio, the ability of foam system to divert liquid tends to decrease.

关 键 词：空气泡沫 阻力系数 选择性封堵 液流转向能力 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]