Effects of pore structure on surfactant/polymer flooding-based enhanced oil recovery in conglomerate reservoirs

LIU Zheyu,LI Yiqiang,LENG Runxi,LIU Zhenping,CHEN Xin,HEJAZI Hossein

Table 3 Physical properties and mineral compositions of the 3 core plugs.

Sample Length/cm Permeability/10-3 μm2 Porosity/% Mineral composition/% Quartz Plagioclase Potassium feldspar Clay Unimodal 6.8 98 21.1% 37.7 16.2 36.9 9.2 Bimodal 6.2 124 19.8% 53.3 9.6 25.6 11.5 Multimodal 6.4 152 19.2% 43.1 16.3 30.9 9.7