On the formulation of problems of nonisothermal water and vapor flow through a high-permeability formation

The formulation of self-similar problems of single- and two-phase water and vapor flow through high-permeability rocks is considered in the case when heat conduction is unimportant. The properties of the corresponding system of conservation laws, which affect the relative position of the integral curves of the Riemann waves and the discontinuity adiabatic curves, are investigated. The problem of breakdown of an arbitrary discontinuity in a geothermal formation with supercritical water parameters is solved.