ESTUDIO NUMÉRICO DEL CAMPO DE TEMPERATURAS Y FLUJO EN POZOS EN LAS CERCANÍAS DE FOCOS TÉRMICOS

Abstract

This work presents a numerical study of the temperature and flow fields in wells near thermal reservoirs into a homogeneous porous media by means of FAHET software, witch simulates using the numerical network method. The geothermal reservoir studied, (height 1000 m, width 6127.5 m), is modeled by 1000 cells, with thermal fire at the bottom left (15 cells) and the water flow comes from the top of the domain. Three simulation stages are studied: different well positions (without well, 2125and 3000 m from the right side of the reservoir), different well depths (550, 600, 900 with the well in the centre of the domain) and calculation of the velocity vector of the fluid. It has been calculated the variation of the temperature and stream function isolines and the variation of the stream function with depth in a vertical at x = 1750m. Simulations determine how the presence, depth and position of the well change the temperature and stream function isolines, in particular in the extraction well point. In a real case, using this numerical study enable to find the best configuration for a correct geothermal exploitation.