| At present,with the increasing difficulty of oilfield exploitation,the numerical simulation technology of reservoir has become an indispensable means of oil displacement and oil recovery.Especially,it is very important to display the reservoir in the post-processing of chemical flooding.However,the difference of numerical simulation software makes the results of different numerical simulation software can not be stored and loaded uniformly,and the number of grids contained in the numerical simulation results also reaches millions or even tens of millions,as a result,a large number of three-dimensional textures are generated,which reduces the operating efficiency or causes the system to crash.Therefore,how to solve the difference between different numerical simulation software and increase the loading speed has become the primary problem to be solved in the post-processing system.Based on the background and practical needs of the research,this paper adopts technologies such as LDM,level-of-detail technology,and octree organization to load different numerical simulation software results and increase the loading speed of reservoirs,so as to realize a fine description of reservoir body.First of all,this article constructed the Open Inventor running environment,and the results files of different numerical simulation software are analyzed.Through the research and analysis of the result files,LDM technology and keyword extraction technology are introduced to solve the difference of the result files.Secondly,through the analysis of heterogeneous result files,according to the characteristics of LDM technology,the technique of level of detail(LOD)and octree data structure technology are applied.At the same time,the LOD mesh optimization algorithm is proposed to accelerate the loading speed of the reservoir and reduce the memory used by the LDM structure.Finally,according to the actual needs of users,combined with the characteristics of reservoirs,the human-computer interaction is achieved through technologies such as regions of interest,cross-sections at arbitrary angles,multi-directional browsing of model bodies,and well location information display.In this paper,the problems existing in the post-processing system of chemical drive numerical simulation and the actual demand will be organically organized based on the storage structure under the management technology of big data organization and the optimization method based on LOD technology,and the corresponding system will be developed to provide theoretical support and instance verification for the establishment of thesystem,which has theoretical significance and reference value to the development of the Post-processing System to some extent. |
