The Key Reservoir Technology Condition of Polymer Flooding in Continental Deposit Heavy Oil Reservoir

Polymer flooding was a very complex system engineering;it needed each factor being at the favorable level to achieve ideal oil displacement effect of polymer flooding.Most of the oilfields in Eastern China were generally continental deposition reservoirs.These reservoirs were characterized by features such as high permeability,strong heterogeneity;high oil viscosity,these reservoir conditions were key to the success of EOR in polymer flooding on the basis of the reservoir polymer flooding techniques used both at home and abroad,the reservoir criteria of polymer flooding were presented.By numerical simulation techniques,the key reservoir technology conditions to polymer flooding are studied for the continental deposit heavy oil reservoir,including reservoir permeability,heterogeneity,oil viscosity,polymer injection time,etc.These study results can provide reference for the similar conventional heavy reservoir polymer flooding.