This scientific article is focused on researching relevance of geo information system (GIS) application which is used for calculating of gas-distribution networks. The experiment has been made on laboratory stand. This stand has modeled: dead end, looped and mixed gas networks. The results was compared to other results, which were gained from program and settlement complex ZuluGaz 8.0(analogue of the stand). In this complex calculations work in close integration with geo information system and were made in the form of the expansion module of the GIS. Comparative analysis of the ZuluGas 8.0 calculation results of existing gas-distribution network, characteristics of the existing gas-distributing network and results of calculating in program complex (where initially this network has been counted) was made.

Keywords: Gas supplying, natural experiment, modeling, geographic information systems, gas distribution networks, laboratory stand