Study On Tertiary Oil Recovery For Enhance Oil Recovery Of Shen84-An12 Block Tar Oil

On the base of effectiveness evaluation of conventional waterflood development in Shen84-Anl2 block, polymer oil-displacing feasibility analysis is studied, polymer oil-displacing agent selecting is researched, indoor physical simulating experiment is completed, and polymer oil-displacing effectiveness is forecasted. Then the next working recommendation is advanced.The mechanism study and analytical method is supplied on polymer oil-displacing agent for enhance oil recovery of Shen84-Anl2 block tar oil, and the suitable displacing technical project of polymer oil-displacing agent is supplied for Shen84-Anl2 block which in later stage of waterflood development, which has built Solid technologic foundation for realizing enhance oil recovery and increases of available reserve. And at same time this study has supplied technologic experience for else blocks which impending fall into high water cut stage in Shenyang oilfield.