Mechanism of expanding swept volume by nano-sized oil-displacement agent

LEI Qun,LUO Jianhui,PENG Baoliang,WANG Xiaocong,XIAO Peiwen,WANG Pingmei,HE Lipeng,DING Bin,GENG Xiangfei

Table 3 Effect of iNanoW1.0 nano-sized oil-displacement agent on expanding swept volume of different cores.

Core number Gas permeability/ 10-3 μm2 Swept volume increase rate/% LA-5-1 1.31 10.5 LA-5-2 1.31 18.9 LA-10-1 1.21 21.5