A mathematical model of the traced liquid flow in the main fracture
A mathematical model of the stationary laminar flow of a traced liquid in the main vertical fracture in the hydraulic approximation is constructed. An exact solution of the corresponding system of equations is obtained. The model calculations based on the obtained formulas made it possible to determine the degree of the influence of a fracture width and its walls permeability on the time of the indicator fluid arrival in the production well. It is shown that the fracture estimated volume can be many times different, if the liquid leakage into the formation through the walls of the fracture is not accounted for.