Analysis of capillary pressure and relative permeability effects on the productivity of naturally fractured gas-condensate reservoirs

Bander N. Al Ghamdi, Luis F. Ayala

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationSociety of Petroleum Engineers - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010
PublisherSociety of Petroleum Engineers
Pages1-12
Number of pages12
ISBN (Print)9781555638481
StatePublished - Jan 1 2010
EventSPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010 - Al-Khobar, Saudi Arabia
Duration: Apr 4 2010Apr 7 2010

Publication series

NameSociety of Petroleum Engineers - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010

Other

OtherSPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010
CountrySaudi Arabia
CityAl-Khobar
Period4/4/104/7/10

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy Engineering and Power Technology

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  • Cite this

    Al Ghamdi, B. N., & Ayala, L. F. (2010). Analysis of capillary pressure and relative permeability effects on the productivity of naturally fractured gas-condensate reservoirs. In Society of Petroleum Engineers - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010 (pp. 1-12). (Society of Petroleum Engineers - SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition 2010). Society of Petroleum Engineers.