Three-zone flow model and well testing analysis research in condensate gas reservoir

On the basis of phase transition characteristic of condensate gas flow in porous medium, established flow equation for condensate oil-gas in porous medium, and introduced dual-pseudo pressure of condensate oil-gas to linearize the flow equation. Then established three-zone condensate oil-gas flow model, obtained analysis solution of pseudo-pressure distribution for condensate oil-gas, and maked certain the interpretation method of build-up test for condensate gas well. Through the application of pressure build-up practical information on the condensate well, it's proved the three-zone model is valuable in condensate gas field exploitation.