This paper studies performance of gas wells producing from a reservoir containing several noncommunicating layers. Predictions were made with a newly developed simulator that performs a complete "nodal analysis" on each time step to determine flow capacity. The four categories of results given are; (1) the excellent correlation of predicted performance of 1- & 2-layer reservoirs with published data validates the novel mathematical approach used in our simulator, (2) for a 5-layer system comparison of simulated results to published values obtained with an analytical solution finds only partial agreement, (3) predicted recoveries after aggregating layers of differing permeability show that layer combinations must be chosen carefully to avoid large errors in predicted recovery and (4) the turbulence coefficient must be defined on a unit thickness basis to obtain correct results for layered systems.

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