D o s s i e r Second and Third Generation Biofuels: Towards Sustainability and Competitiveness Seconde et troisième génération de biocarburants: développement durable et compétitivité A Novel Model of Foam Flooding Considering Multi-Factors for Enhancing

Abstract—Foam flooding is a promising technique for achieving mobility control and diverting fluid into low-permeability strata in post-water-flooding reservoirs. However, foam flow is very compli-cated and is influenced by many factors which have not been studied and explored very rigorously (i.e. permeability, surfactant concentration, foam quality, reservoir temperature, oil saturation, water saturation and seepage velocity). Based on core flooding experiments of foam flowing and blocking rules using two kinds of foaming agents, a novel model of foam flooding considering the influences of the above factors is established and solved using a reservoir simulator which is formu-lated using the IMPES method in conjunction with a Runge-Kutta method. Then, the validation is performed by core flooding experiments in both the absence and presence of oil. Finally, the simula-tor is used to investigate the effects of the permeability max-min ratio, ratio of vertical to horizontal permeability, gas-liquid ratio, depositional sequence, foaming agent concentration, and reservoir temperature. Résume ́ — Un nouveau modèle d’injection de mousse considérant de multiples facteurs afin d’améliorer la récupération de pétrole — L’injection de mousse est une technique prometteuse pour atteindre un contrôle de la mobilite ́ et détourner le fluide dans des couches a ̀ faibl