CO2 assisted steam flooding in late steam flooding in heavy oil reservoirs

XI Changfeng,QI Zongyao,ZHANG Yunjun,LIU Tong,SHEN Dehuang,MU Hetaer,DONG Hong,LI Xiuluan,JIANG Youwei,WANG Hongzhuang

Table 1 Designed parameters of the model.

Model Geometry Thickness Permeability/10-3 μm2 Upper layer Physical interlayer Lower layer Upper layer Physical interlayer Lower layer Reservoir prototype 60 m×60 m×40 m 16 m 4 m. 20 m. 2600 200 1200 Physical model 30 cm×30 cm×20 cm 8cm 2 cm 10 cm 2600 200 1200