Abstract
Gas condensate reservoirs present complicated thermodynamic behavior when pressure falls below the dew point pressure, due to fluid dropout and change in the fluid composition. Condensate blockage in the near wellbore region reduces the well deliverability. Mixture composition change in the reservoir makes the interpretation of well tests in gas condensate reservoirs a serious challenge. In this study, at first the capillary number effect and Non-Darcy Flow on compositional simulation of gas condensate reservoirs were investigated and then well test analysis was carried out. The main objective of this work was to examine gas condensate well test analysis using single-phase gas pseudo-pressure and radial composite model assuming capillary number effect and Non-Darcy Flow. For this purpose some fluid samples were selected and results compared. Results indicate that estimation of reservoir properties below the dew point is in good agreement with actual input, particularly for lean fluid samples.
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Yousefi, S.H., Eslamian, A. & Rashidi, F. Investigation of well test behavior in gas condensate reservoir using single-phase pseudo-pressure function. Korean J. Chem. Eng. 31, 20–28 (2014). https://doi.org/10.1007/s11814-013-0194-5
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DOI: https://doi.org/10.1007/s11814-013-0194-5