In article with use of the equation of material balance for gas, relations between porosity and pressure in layers with the creeping environment, and also formulas for an well discharge received as a result of linearization of the differential equation of movement of real gas in the porous environment, the technique of definition of indicators of development of a gas field in an exhaustion mode communication under various techno-logical conditions is offered. Using the offered method, at the set selection of gas from a field, changes in time of outputs and required quantity of wells, reservoir and bottom hole pressure, and also porosity of a deposit were defined. As a result of the calculations carried out for a hypothetical deposit it was estab-lished that in gas fields creeping deformation of rocks, rather nonlinear and elastic deformation, slows down decrease in sheeted pressure and leads to change of porosity in big limits and reduction of required quantity of wells for ensuring set dynamics of gas production.