Mechanisms of water block removal by surfactant micellar solutions in low permeability reservoirs

LI Junjian,LIU Ben,GUO Cheng,SU Hang,YU Fuwei,MA Mengqi,WANG Lida,JIANG Hanqiao

Fig. 18. Images of flowback process in Schemes FA-1, FA-2, FA-3 and FA-4.