Abstract
The main purpose of the work is mathematical modelling of heat exchange of steam-water flow in a geothermal pipe of a vertical well. Within the framework of the hydraulic approximation, a numerical study of the steady isothermal motion of a thermodynamically equilibrium steam-water mixture in a vertical well has been carried out, taking into account heat losses into the surrounding rocks. In this task, the process of coolant movement along the borehole and its thermal interaction with its wall is considered. Because of the implementation of the described model, the values of specific heat losses in the rock mass for various initial conditions for wells were obtained.
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