The Evaluation of Foam Performance and Flooding Efficiency

[摘要] ROSS-Miles and spinning drop interfacial tensionmeter are used to select suitable foam system through foam composite index (FCI) and interfacial tension (IT). The selected foam system are taken to conduct further test. The further tests are evaluating the foam system resistance to adsorption with multi-round core flooding dynamic adsorption test and evaluating the performance of foam system with four kinds of different transport distance, quantitatively analyzing the foam system effective distance after dynamic adsorption. The result shows that the foaming ability and the mobilizing ability of the foam system decrease with the increase of the round of dynamic adsorption. As the transport distance increases, the foaming ability and the mobilizing ability of the foam system decrease. This result further reveals the flooding characteristics of nitrogen foam flooding, which provides a reference for the implementation of nitrogen foam flooding technology.

[发布机构] Northeast Petroleum University, Daqing, Heilongjiang; 163318, China^1

[关键词] Dynamic adsorption;Effective distance;Foam composites;Foam performance;Foaming ability;Nitrogen foam flooding;System resistance;Transport distances