High-potential geothermal deposits, as a rule, should be assigned to the third category of complexity of geological and hydrogeological conditions of formation, circulation and discharge of groundwater.
Well testing is carried out to study the initial hydrodynamic, thermodynamic and hydrochemical parameters, to predict possible changes in their operating conditions and to obtain initial information for calculating the operational reserves of thermal waters.
When studying the motion of liquids and gases in a variety of technological processes of drilling wells widely used concepts of hydroaeromechanics, expressing the laws of conservation of mass, momentum and energy.