| Abstract: | A method is presented to calculate pressure traverses in a condensate well utilizing existing techniques for two-phase flow of fluids in pipes. Existing correlations have been developed for black oil flow where gas evolves from the oil as pressure and temperature are reduced. In the case of condensate flow, a liquid evolves as pressure and temperature are reduced, thereby making the existing correlations inapplicable. The Peng-Robinson equation of state is used to model the gas/condensate fluid and predict the gas/liquid ratio at any pressure and temperature as a traverse is calculated for the depth of the flowing well. The existing two-phase flow correlations for black oil flow are used in this work to predict gas/liquid properties such as liquid holdup, friction factors, and flow regimes. This model is then applied to several wells for which extensive data was taken, including PVT properties and pressure measurements. |
