Research On Movement Principle Of Oil And Water Of Well Group And Control Method Of Oil Wells

After decades of development of the Daqing oilfield has entered the stage of determining,complex formation pattern,scattered distribution,potentialities and difficulty increased gradually.In the face of complex oilfield status and increasing development requirements,it is necessary to develop a targeted water injection adjustment scheme based on the remaining oil distribution and the law of oil and water movement.In order to further tap the potential of remaining oil,in recent years,the development of layered production technology to achieve the control of oil wells.Layered production,water content testing process for the preparation of a fine program provides a new data basis.At present,it has not yet formed the preparation method of distribution and distribution of the results of stratified production and water content,based on the well seepage channel and the remaining oil distribution rule.Therefore,a hierarchical distribution method based on the advantages of seepage channel and residual oil distribution is proposed,and an integrated software platform is developed to maximize the potential to maximize the potential.In this paper,on the basis of dynamic and static data and test data,based on remaining oil potential,guided by the direction of oil and water movement,with the aid of layered testing results,the reference dynamic oil and water Wells,thus the residual oil as the goal,comprehensive analysis of potential layers.Developed based on the cumulative injection pore volume ratio between residual oil saturation and residual oil fast forecasting method,this method is rapid,short preparation period,suitable for application in community or well group.This paper studies the method of distribution and distribution of oil and water wells with integrated distribution and distribution of raw materials,and changes the status quo of the preparation plan by relying on experience through input and output ratio,investment recovery period and internal rate of return.For the calculation of the pressure field and the saturation field distribution,the successive solutions are used,and there is no simultaneous,and there is no constraint on the ratio of time step and space step,which avoids the iterative solution of the huge equations.The computational efficiency is significantly improved.This method is a fast and flexible feature,which is a useful complement to the traditional numerical simulation method,which can meet the needs of the remaining oil prediction in the well group.Application of Delphi language,object-oriented software compiled the "symmetry oil-water movement rule and reasonable hierarchical control aided decision system" oil and water Wells,the system can complete judgment of seepage channel advantage,remaining oil prediction,interval division and allocation of injection allocation,economic evaluation,and other functions into an organic whole,is a powerful auxiliary tool for reservoir engineers.