泡沫薄膜液在变径管内的流变学特性

发布时间：2018-10-08 17:05

【摘要】：针对泡沫流体在储层介质内的流动特点,对泡沫薄膜液在变径管内的流变学特性进行实验研究。基于两相流动假设,利用量纲分析法确定量纲1参数ΔpD/δ及(3μU/σ)~(2/3)。通过CO_2及N_2泡沫的实验结果发现泡沫薄膜液在变径管内流动时需克服启动压力,量纲1参数间呈明显的线性关系,而且N2泡沫与CO2泡沫相比具有更大的流动阻力。与直管相比,泡沫薄膜液在变径管内具有更大的流动压差。实验结果表明,对于揭示泡沫液在多孔介质中的流动机理,Herschel-Bulkley模型优于幂律模型。
[Abstract]:According to the flow characteristics of foam fluid in reservoir media, the rheological characteristics of foam film fluid in variable diameter tube were studied experimentally. Based on the two-phase flow hypothesis, dimension 1 parameters 螖 pD/ 未 and (3 渭 U / 蟽) ~ (2 / 3) are determined by dimensional analysis. Through the experimental results of CO_2 and N-2 foam, it is found that the starting pressure should be overcome when the foam film liquid flows in a variable diameter tube, the linear relationship between dimension 1 parameters is obvious, and the flow resistance of N2 foam is greater than that of CO2 foam. Compared with the straight tube, the foam film liquid has larger flow pressure difference in the variable diameter tube. The experimental results show that the Herschel-Bulkley model is superior to the power law model for revealing the flow mechanism of foam in porous media.
【作者单位】：青岛科技大学机电工程学院;青岛科技大学自动化与电子工程学院;
【基金】：国家自然科学基金项目(51476081)~~
【分类号】：O37;O359.1

【相似文献】