Research On The Rational Time Of Finishing Polymer Flooding In Sazhong Area Of Daqing Oil Field

At present, Daqing oil field has turn into the high hydrous and terminal exploiture phases,at the situation of the high hydrous,the high degree of exploitation and the high exploiture speed of the remain reserves, keep the stable yield of exploiture is more difficult .with the durative increase of the crude oil production cost,the total yield of the oil field exploitation steps down. In 1996,polymer flooding industrialisation was spread and apply more blocks, also took perfect effect in high yield and low hydrous. One quarter of yield in Daqing oil field comes from polymer flooding blocks ,it has become an important technique to EOR . subject of the article ,it research about the rational time while finishing polymer flooding based on dynamic index and rule, serve Daqing oil field with more yield opposite to less cost,and strongly assure the enduring development of Daqing oil field.In the theme , it is sum up that the characteristics of product index about the variational liquid,production oil and hydrous criterions the polymer flooding of Sazhong area. analyse the dynamic characteristics and variational rules, investigate polymer flooding criterions forecasting experience formulas.On the base of summing up a great deal dynamic characteristics and static mode datum,combining polymer flooding current metatropy and the methods of water injection exploitation index mark forecasting, it is struke up the methods of theories and experiences associative polymer flooding exploitation index mark forecasting,and emphatically developing polymer drive dynamic reflection characteristics and exploitation effect influence factors and the methods of polymer flooding exploitation index mark forecasting and inject rate in reason and effect estimate,it also confirm the rational time while finishing polymer flooding.these investigations perfect the theories of polymer flooding exploiture,provide efficient methods for optimizing polymer flooding project design and improving exploiture effect.