Experimental Study on Optimization of Polymer Preslug Viscosity of ASP Flooding in Interlayer Heterogeneous Well Group Artificial Sandstone Core

<div>Remaining oil distribution at the end of the ASP main slug stage under different polymer preslug viscosity; (a) remaining oil distribution in low-permeability layer; (b) remaining oil distribution in medium-permeability layer; (c) remaining oil distribution in high-permeability layer.</div>

Geofluids

fig16

Figure 16

Figure 16: Experimental Study on Optimization of Polymer Preslug Viscosity of ASP Flooding in Interlayer Heterogeneous Well Group Artificial Sandstone Core 

Figure 16 | Experimental Study on Optimization of Polymer Preslug Viscosity of ASP Flooding in Interlayer Heterogeneous Well Group Artificial Sandstone Core 