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泡沫驱用于油田开发已有五十多年的发展历史,早期实验研究结果表明,泡沫体系可以扩大驱油过程中的波及体积,是一项很有发展前景的提高采收率技术。近年来,泡沫在提高原油采收率中的应用已引起人们越来越广泛的关注,对于相关理论和技术问题的研究日益深入。本文从理论出发,对泡沫体系驱油机理与规律进行研究,通过室内岩心驱替实验,进一步证明了泡沫驱油技术具有良好的调剖和洗油功效,是聚驱后较为有效的提高采收率技术。
Foam flooding has been used in the development of oilfields for more than 50 years. The results of early experimental studies show that the foam system can expand the flooding volume in the flooding process and is a promising technology for enhanced oil recovery. In recent years, the application of foam in improving oil recovery has aroused more and more attention, and the research on related theories and technologies has been deepening. Based on the theory, this paper studies the mechanism and rules of displacement mechanism of foam system. It is further proved that the foam flooding technology has good profile control and oil washing effect through indoor core flooding experiments. It is more effective to increase recovery after flooding Rate technology.