Research On Two-phase Streamline Simulation Based On Multi-scale Finite Volume Method

Multi-scale methods have been widely used in many scientific and engineering problems,especially in large-scale heterogeneous reservoir simulation,because of its strong parallelism,so called a very effective method.Streamline simulation,as a numerical simulation of reservoir numerical simulation,is a kind of research method which is used by modern researchers to study the numerical simulation of fluid movement with its fast and effective and practical value.Although the multi-scale method has obtained many scientific research achievements in the field of numerical simulation of reservoirs,the research results in the field of numerical simulation of streamline are relatively few,and this paper presents a numerical simulation of two-phase flow lines based on multi-scale finite volume method.In this paper,the multi-scale finite volume method for streamline simulation is described,which mainly includes the construction of the basis function,the pressure and water saturation solved by the full implicit method,the velocity field and streamline in the area.In order to verify the correctness and practicability of multi-scale streamline numerical simulation theory,this paper has carried on the streamline simulation calculation to several actual reservoir development schemes.It is found that the relative error of multi-scale pressure and water saturation can be controlled at 10^-2,and the time can be shortened to at least 1/400 of the fine-scale method by multi-scale simulation and fine-scale simulation.Therefore,within the allowable range of error,multi-scale method can be used as an effective method for reservoir numerical simulation.