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Report RSE 17002200

User manual of the GeoSIAM software - Version 1.4

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The Integrated System for GeoModeling Analyses (GeoSIAM), initially developed for geothermal studies coming from a previous system devoted to the numerical modeling of the CO2, has been applied to the simulation of production processes related to a large number of geothermal sites, also with a strong CO2 contents. The treatment of fluid systems including gas has then suggested to extend the GeoSIAM application to the problems involved in the production and storage of natural gas into geological reservoirs, with the goal of satisfying all the simulation requirements referred to cycles of production/injection of natural gas, thanks to a complete revision both of the modeling and the computational aspects of the modules included in the system and also of its graphic interface, with special reference to the pre and post processing modules and to the fluid dynamic analysis modules.

The high level of accuracy resulting from the fluid dynamic simulations highlighted the inadequacy of the geomechanical module previously included in the system, that in the current release has been substituted by a module specifically oriented to the study of geological structure. As the consequence, both the module devoted to the 3D mesh generation and the interface modules of the system have been properly improved. The user manual has been therefore updated and improved, specially looking for the innovative aspects not yet furnished and mainly with reference to the restructured modules and the new modules included during the work, of course completing these information with the necessary operating instructions for the modules kept unchanged, with the aim of making available to the final user of the system a user’s manual handy and easy to consult. Therefore the user manual described in the present document, that besides includes the essential instructions for the system installation and inlet data generation together with the guidelines of the user graphic interface, represents a powerful tool to perform more quickly all the phases of the analysis, strongly reducing the possibility of errors, and it can be considered as an indispensable handbook for the user that try to use the Integrated System for GeoModeling Analyses (GeoSIAM) in the current release 1.4 for the first time.

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