Liquid saturation and pressure around well in low-perm lean condensate reservoir ‘Condensate blockage’ region of high liquid saturation close to the well.

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Liquid saturation and pressure around well in low-perm lean condensate reservoir ‘Condensate blockage’ region of high liquid saturation close to the well Far from the well, liquid saturation is < 2% (as in CVD expt) Most of the pressure drawdown occurs close to the well, so condensate blockage has a large impact on deliverability.

Liquid saturation and pressure around well in low-perm lean condensate reservoir Semilog plot shows importance of ‘condensate blockage’ region. With no condensate blockage, p vs log(r) is roughly linear. Steeper gradient near well is due to condensate blockage.