Production Technology Policy Limitation Of Water Flood Development In The North Of Saertu Development Area

The North saertu development area after entering the extra high water-cut stage,Waterflooding development in two high and two low exploitation phase, that is, integratedhigh moisture, high degree of recovery of recoverable reserves, low pressure, low reserves tobalance. Main objects and water flooding exploitation becomes worse, dwindling reserves,class, class II reservoirs gradually into a tertiary oil recovery development, water flood wellclass, the second class reservoir is in use or blocked, reserves of water flooding the current22.1%have been reduced. In the course of more than40years of development, several majoradjustments, the production decline, with water rising up to a different level of control.Nowcoexistence of polymer flooding of water, underground oil-water distribution more complex,more net interaction, increased analysis of difficulty of production decline, rising water law.Research at high water-cut stage development index trends, determine the technical limits ofthe aqueous phase is a very pressing issue. According to oilfield development approach andchange of drilling conditions, effect on water flooding development index of main factorsanalysis of tertiary oil recovery development on main indices of water flooding, researchapplied to the current development status of water flooding prediction method, whilereformulation and summary with the current development of actual development technicallimits.From the reservoir engineering point of view, to fluid mechanics theory on the basis ofapplication of fine geologic study in oil field, North saertu development area under thecondition of reservoir heterogeneity study on change law of oilfield development indexes,existing production index prediction method for the analysis of adaptability. Reveal fluid flowand reservoir geology, reservoir fluid changes to mining development indicators of theinternal effects, explain the different geological, mining development under the condition offluid flow indicator changes.