Controlling factors of remaining oil distribution after water flooding and enhanced oil recovery methods for fracture-cavity carbonate reservoirs in Tahe Oilfield

ZHENG Songqing,YANG Min,KANG Zhijiang,LIU Zhongchun,LONG Xibin,LIU Kunyan,LI Xiaobo,ZHANG Shiliang

Fig. 5. Schematic diagram of recovering class I-a remaining oil by gasflooding.