For the solution of problem of distribution of layer's pressure finite difference method is mostly used. in this article the solution of this problem is found by means of finite elements' method. Comparing to the finite difference method, finite elements' method makes it possible to work with a more large net, at the natural account of delta-function, entering the equation and modelling the activity of forcing and extracting wells. The results of the calculating experiment which confirms the effectiveness of the proposed appoach are fuggested.