Analysis of the inspection well water flooded layer in Beisanxi area of Saertu oilfield

Saertu oil field is on the high water development stage with exploitation degree deepen and oil water level rises rapidly,its contradictions of Interlayer,inner,plane is highlight.Due to the complex situation of reservoir washing,this paper puts forward a deep study of the inspection Wells to see the variation status of Reservoir physical properties.Through study the washing features and disciplines of the inspection Wells,It intend to realize factors which influence governing factor and distribution regularity of remaining oil,it also puts forward adjustable injection profile as well as making full use of interlayer and so on.In general,usable reservoirs have high washing strength and oil displacement efficiency,unworkable reservoirs is on the other hand.Reservoir with much more Sandwich and complex internal structure have Low degree of water flooding,while single-layer with low degree of connectivity and good porosity are Washing badly.In sum,inspection well deploy is made to provide ideas for understanding residual oil distribution.