Study On The Optimization Adjustment Of The Distribution Of Remaining Oil And Water Flooding Layer In Eastern Northern Zone Of Saertu Oilfield

With the majority of oil into the period of high water cut,oil from the real sense to fully tap the potential of remaining oil in high water cut period,conditions,and the distribution of accurate grasp of the remaining oil in oil development earlier in the development and implementation of a dynamic adjustment scheme can give a clear direction.The plan of wells in the formulation of measures,also has a relatively strong pertinence to.This research area is the north eastern area of water flooding,developed in 1965,after nearly more than 50 years of waterflood development,has entered the high water cut stage,the remaining oil distribution is complex,adjust the difficulty gradually increased,the existing adjustment measures effect becomes worse.The north eastern area of water flooding as the first three encryption and injection production system adjustment block,mainly adopt new,transfer and mending holes combination,without layer adjustment,the existing encryption layer perforation long,staggered layers and well pattern and injection production relationship is complex,relationship is not perfect local injection,the need to further optimize the injection production system,improve the effect of block development.Adjust the test area north east after the reorganization of the Department of the two layer,wells,shorten the difference between layers is reduced and the well pattern and injection production relationship is clear,operation effect is good,therefore,according to the potential features of remaining oil reservoir in eastern,North District,north two East layer recombination Zone successfully combined with thinking to reduce interlayer interference,improving the injection production relationship as the goal,the whole idea in accordance with the "strata subdivision and well pattern,well spacing,independent optimization of injection to production,to adjust",according to the north eastern region of the reservoir development and well network deployment characteristics,optimization combination of layers and well pattern,the three oil recovery of two kinds of formations with the contract further,to adjust and optimize the north eastern region layers and well pattern,better development effect.