TY - GEN
T1 - Analysis of capillary pressure and relative permeability effects on the productivity of naturally fractured gas-condensate reservoirs
AU - Al Ghamdi, Bander N.
AU - Ayala, Luis F.
N1 - Publisher Copyright:
Copyright © 2010, Society of Petroleum Engineers.
PY - 2010
Y1 - 2010
N2 - Productivity of gas-condensate reservoirs can become severely impaired due to the appearance of condensate near the production channels, which in turn reduces the overall flow of fluids to the surface. The deliverability of gas-condensate reservoirs is controlled by transport properties, which include capillary pressure and relative permeabilities between the fluids in a pore-scale. In this work, the productivity of naturally fractured gas-condensate reservoirs is studied using a compositional simulation model that examines the effects of capillary pressure and relative permeability values on the recovery of gascondensate fluids. A compositional simulation model was utilized for the evaluation of the influence of fluid characteristics on the severity of condensate coating while assigning tight matrix permeability of 0.001 md. The study utilized different reservoir fluid composition found within the gas-condensate spectrum and examined the performance behavior with and without capillary pressure effects. The parametric study showed that for the conditions under examination, capillary pressures did not significantly affect performance in terms of fluid distribution, movement, condensate evolution, and recovery. Relative permeability effects showed dependency on condensate content of the reservoir and extent of reservoir condensation.
AB - Productivity of gas-condensate reservoirs can become severely impaired due to the appearance of condensate near the production channels, which in turn reduces the overall flow of fluids to the surface. The deliverability of gas-condensate reservoirs is controlled by transport properties, which include capillary pressure and relative permeabilities between the fluids in a pore-scale. In this work, the productivity of naturally fractured gas-condensate reservoirs is studied using a compositional simulation model that examines the effects of capillary pressure and relative permeability values on the recovery of gascondensate fluids. A compositional simulation model was utilized for the evaluation of the influence of fluid characteristics on the severity of condensate coating while assigning tight matrix permeability of 0.001 md. The study utilized different reservoir fluid composition found within the gas-condensate spectrum and examined the performance behavior with and without capillary pressure effects. The parametric study showed that for the conditions under examination, capillary pressures did not significantly affect performance in terms of fluid distribution, movement, condensate evolution, and recovery. Relative permeability effects showed dependency on condensate content of the reservoir and extent of reservoir condensation.
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M3 - Conference contribution
AN - SCOPUS:85058862261
SN - 9781555638481
T3 - Society of Petroleum Engineers - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010
SP - 1
EP - 12
BT - Society of Petroleum Engineers - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010
PB - Society of Petroleum Engineers
T2 - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010
Y2 - 4 April 2010 through 7 April 2010
ER -