Research On Polymer Flooding Development And Comprehensive Adjustment Of Pu 1 Formation In North Transition Belt Of Daqing

The North Development Zone is the first transition bands of polymer flooding industrialization block in transition belt of daqing. Polymer flooding technology is mainly for pure oil reservoirs in the oil field development, can only learn from the experience of the polymer flooding of pilot test on PuⅠ1—4 oil reservoir in Sabei Transitional Zone in 1997 to 2002. Due to the differences between transition zone and pure oil reservoir development, there are great differences between the nature of crude oil and pure oil.So in the process of polymer flooding, the dynamic reflect of production well is different in transition zone; in addition, different from the test area,the transition zone is now in the late stage of high water cut. Therefore, we have to research in transition band area seriously for polymer flooding effect.Through the using of fine geology research results and the wall coring datas, researched the sedimentary characteristics, reservoir development condition and remaining oil distribution types of the block, respectively study the reservoir heterogeneity from the planel and longitudinal respect.The application of water flooded explain data and test data of isotope, respectively analyzed the block degree of water flooding and oil reservoir producing degree and remaining oil distribution.Through gathering and analyzing the dynamic and static states,to suming up the polymer flooding development features and rules of the block,finding out the dominant affect factors on polymer flooding development effect in the same type of formation,evaluating the effect of comprehensive adjustment steps,evolving thoroughly knowledge of the development situation.For directing the manufacture practice, and greatly lift recovery ratio, and providing practical basis and technical support on increasing oil production measures in transition zone during high water cut exploitation.