Shell Global Solutions International, Rijswijk, The Netherlands.
Adv Colloid Interface Sci. 2012 Nov 15;183-184:1-13. doi: 10.1016/j.cis.2012.07.002. Epub 2012 Jul 31.
The efficiency of a foam displacement process in enhanced oil recovery (EOR) depends largely on the stability of foam films in the presence of oil. Experimental studies have demonstrated the detrimental impact of oil on foam stability. This paper reviews the mechanisms and theories (disjoining pressure, coalescence and drainage, entering and spreading of oil, oil emulsification, pinch-off, etc.) suggested in the literature to explain the impact of oil on foam stability in the bulk and porous media. Moreover, we describe the existing approaches to foam modeling in porous media and the ways these models describe the oil effect on foam propagation in porous media. Further, we present various ideas on an improvement of foam stability and longevity in the presence of oil. The outstanding questions regarding foam-oil interactions and modeling of these interactions are pointed out.
泡沫驱油提高采收率过程的效率在很大程度上取决于泡沫在油存在下的稳定性。实验研究表明，油对泡沫稳定性有不利影响。本文综述了文献中提出的解释油在体相和多孔介质中对泡沫稳定性影响的机制和理论（不分离压力、聚并和排液、油的进入和扩展、油乳化、压扁等）。此外，我们还描述了现有的多孔介质中泡沫模型以及这些模型描述油对多孔介质中泡沫传播影响的方法。此外，我们提出了在存在油的情况下改善泡沫稳定性和稳定性的各种想法。指出了泡沫-油相互作用及其相互作用建模方面的悬而未决的问题。
