氮气泡沫驱提高采收率机理及影响因素研究进展

Research Progress of Influence Factors and Mechanism of Nitrogen Foam Flooding

氮气泡沫因其独特的流变性和对非均质严重地层的良好封堵性能,受到各大油田的关注,并成功应用。文章综述了氮气泡沫驱提高采收率的机理及影响因素,并对影响因素进行了详细分析,同时指出了目前存在的问题并对油田开发生产提出了相关建议,为氮气泡沫驱技术更好的发展并服务于油田生产。

Owing to the peculiar rheology behavior, excellent adaptability and sealing characteristics to severe heterogeneity formation, the nitrogen foam flooding technique gains more and more focus and has been successfully applied in many oilfields. In this paper, the mechanism and influence factors of nitrogen foam flooding in EOR process were summarized, meanwhile, existing problems were analyzed, and some suggestions were put forward, in order to make the nitrogen foam flooding technique better meet the demand of oilfield development.