Page 462 - KAPPA - Ecrin v4.30 tutorials

Ecrin v4.30 - Doc v4.30.01 - © KAPPA 1988-2013 Rubis Guided Session #7 • RubGS07 - 16/19
Saturation field after 3500 hr of
production:
Saturation field after 7000 hr of
production:
As can be seen, the pressure support from the gas injector allows maintaining the pressure
above the dew point in the gas cap, prohibiting any condensate to form in the upper region of
the reservoir. That being said, a (small) condensate dropout actually shows up along the
producer wellbore itself as pressure decreases with depth:
Fig. H01.1 • Oil and pressure logs output at the producer
This ‘temporary’ dropout is due to the fact that the pressure in the wellbore gets below the
mixture saturation pressure (more and more oil appears), crosses the two-phase P-T region
and becomes small enough to converge towards the dew point (the oil turns into gas again).