2016_EJRNL_PP_ARASH_AZAMIFARD_1.pdf
Terbatas  Suharsiyah
» Gedung UPT Perpustakaan
Terbatas  Suharsiyah
» Gedung UPT Perpustakaan
Gas condensate is one of the most different fluids in reservoir simulation due to retrograde
condensation in case of pressure reduction. In this kind of fluids, two phenomena named negative
inertia and positive coupling, become significant in the high velocity zone around the wellbore. In
this study, a modified black oil simulator is developed that take into account the velocity dependent
relative permeability. Against the industrial simulator that assumes linear variation of transmissibilities by pressure, modified black oil nonlinear equations are solved directly without linearization. The developed code is validated by ECLIPSE simulator. The behavior of two real gas
condensate fluids, a lean and a rich one, are compared with each other. For each fluid, simulations
of PVT experiments are carried out to calculate black oil property applying Coats approach for gas
condensate fluids. For both fluids, the proposed models for gas condensate velocity dependent
relative permeability show different influence of velocity on relative permeability in the same
conditions. Moreover, it is observed that higher flow rate of gas production leads to more
condensate production during constant rate well testing