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 2 The offline T2 spectral peak area of simulated formation water and iNanoW1.0 nano-sized oil-displacement agent displacing core LA-10-1.

Displacement fluid P1 (Small pore) P2 (Medium pore) P3 (Large pore) Total peak area Simulated for- mation water 16 584.32 1 355.77 82.61 18 022.70 iNanoW1.0 nano- sized oil-displace- ment agent 20 218.93 1 566.54 116.90 21 902.36