| In this paper,combined with the actual situation in the 45 block were analyzed by using the method of water flooding recovery,through improve the characteristics of oil-water two-phase flow characteristics,reservoir engineering method and dynamic index,it to reveal the development law of oilfield,the development evaluation system established were provide the scientific basis and technical support for the development and adjustment of oilfield development.On the basis of the geological characteristics and development characteristics of the 45 block in Daqing oilfield,sedimentary micro facies classification and development course has a detailed understanding.The 45 blocks of daqing oil field is analyzed in layered water injection conditions,The water absorption condition of the block and the 103-55 inspection well are calculated,and the required data are calculated by regression equation.The geological reserves and recoverable reserves are estimated by using the water washing condition of the reservoir,the watered out condition of the reservoir and the watered out layer.At the end of the block fine stratified water potential are analyzed,including the use of block degree,effective thickness,permeability effect on development,finally toward the 45 block subdivision water injection technology demonstration line.Through the above data analysis,the numerical simulation is used to match the results of the previous laboratory experiments.Profile control in injection is well,oil recovery were increased significantly,the depth profile of main reservoir thickness were decreased 38.7%,thickness of the water profile control main oil were increased by 30%,fine stratified average daily oil production were increases,water content were decreased,the recovery rate were increased by 1.56 percentage points,and the number were increased more the indexes of the oil effect more obvious.Therefore,in the geological,in the case of geology and engineering,the finer water injection,the better the effect. |
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