Nodal Analysis is a testing tool for reservoir engineers to perform a quick estimation of well potential. IPR is calculated based on Vogel Flow theory. VLP calculation is based on Hagedorn Brown Calculation. Quick calculation can be performed either on the meeting or on the field. Synchronization to WFM will allow user to keep all his calculations saved in the specified wells.Nodal analysis can be used for most of Natural Flowing wells + in the wells with the gas lift where GOR can be increased artificially to generate VLP. Nodal Analysis is easy to use and recommended for petroleum engineers as a supportive tool prior going to detailed study. It’s our first version of Nodal Analysis, and new features will be added in future like: sensitivity analysis, other correlations, artificial lift etc.