MATHEMATICAL MODELING FOR FORMATION STIMULATION Information system "Granat" It is a set of interacting software modules and data bases for forming and operating the standing geological and technological oil models. The information system having the integrated data base for forming and operating the standing geological and technological oil models based on the software system "Granat" is the most optimum software product for solving the problems of development control and management. The "Granat" system is adapted for the technical and organization conditions of the Russian enterprises and it has substantial cost advantage. The modules for solving the specific problems of the company can be added. The module for data base import into another structures enables the combination of the "Granat" system and other packages solving the problems on the level of the information and analytical centres. The information system "Granat": forms and maintains data base; forms geological model 3D; has visualization means of the geological model in a form of the geological maps, profiles, blockdiagrams, correlation diagrams, tables etc.; has correction means for geological markers of interlayers and layers; forms the technological model for development analysis as the dynamics of the field factors; has visualization means of the technological model in a form of the maps of production and injection density, maps of formation pressure, water fraction in flow, diagrams of development factors' dynamics, tables etc.; conducts zoning of the prospects for the geological and technological measures and evaluation of their efficiency according to given criteria; prints the simulation results as well as the technological maps in any format according to the standard specified in the oil industry. The integrated data base has the information of the following parts: "Geology", "Development", "Investigations", "Measures", "Technical well condition", "Manuals". The integrated data base is common for all software modules of the information system "Granat". The modules are controlled by the system Kernel. The system Kernel supports construction and links of the basic modules of the software system. It controls data base, integrates applied modules, enters and edits the data, visualizes the input data, simulation results and calculations on the display and prints. The software system "Granat" includes: The module of data preparation and test The module of interactive entry of boundaries and controls The module of geometrization of the reservoir, zones, blocks and areas "Geology" The module of geological model calculation is one of the basic calculation modules of the information system. The calculated digital geological model is stored as the specific space information structure-statistic reservoir model. The module of reserves calculation - density of ge ological reserves calculated from oil and/or gas area for each layer or member. "Technology" The module of calculation of production and injection density maps. The module of isobar maps' calculation. The module of the technological maps' construction. The module of table calculation. The module "Filtration model". The module "Calculation of formation stimulation". The module "Economic calculations". The module of the correlation diagrams'construction and correction of structural marks and geological markers. The module of the geological profiles' and block-diagrams' construction. The module of the model section construction for express evaluation of the geological characteristics. The module of calculation of the geological characteristics' tables. The module of construction of the technological factors' diagrams. The module "Measures" for analysis of the results of the formation stimulation methods' employment and planning of the geological and technical measures. The integrated data base is common for all software modules of the information system "Granat". TYPES OF PROVIDED SERVISES Formation of geological model of a reservoir. Formation of technological model of a reservoir. Formation of filtration model of a reservoir. Installation of the Information System "Granat" with standing reservoir model, training of personnel. Calculation of formation stimulation methods for optimization of technological parameters. Preparation of data for reserves’ calculation, formation of technological diagrams, projects and technological diagrams of pilot field development in accordance with the Rules for Design Technological Documentation Draw up.