In a gas condensate reservoir, as the flowing bottom-hole pressure goes below the dew point pressure, liquid condensate would condense out of the dominant gaseous phase. This would cause a remarkable decrease in the gas relative permeability in the near wellbore region where most of the pressure drop would occur. A possible explanation of this decrease in gas relative permeability is that the heavy components in the liquid condensate get attracted to the pore surface and shift the wettability towards a more oil-wet state.

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