In this study, a reservoir modeling approach was used to evaluate the miscibility conditions for an Afghan oil reservoir. A model of slim-tube apparatus was built for compositional simulation in CMG-GEM. Minimum miscibility pressure/enrichment (MMP/MME) of crude oil-gas (carbon dioxide, methane and nitrogen) systems were determined by slim-tube simulation. To study the reservoir performance under each injection gas process, we built a quarter of five spot pattern model. The model was assumed to represent a homogeneous section of the reservoir. Simulation results of slim-tube test suggest that, to be miscible with reservoir oil, carbon dioxide requires less addition of enriched gas comparing to nitrogen or methane. But, the reservoir section model showed that a miscible nitrogen injection is better, with higher oil recovery factor than that of miscible carbon dioxide or methane.
|Title of host publication||21st Formation Evaluation Symposium of Japan|
|Publisher||Society of Petrophysicists and Well-Log Analysts|
|Number of pages||5|
|Publication status||Published - Oct 13 2015|
|Event||21st Formation Evaluation Symposium of Japan - JOGMEC, Chiba, Japan|
Duration: Oct 12 2015 → Oct 13 2015
|Conference||21st Formation Evaluation Symposium of Japan|
|Period||10/12/15 → 10/13/15|
All Science Journal Classification (ASJC) codes
- Fuel Technology
- Modelling and Simulation
- Earth and Planetary Sciences(all)
Ghulami, M. R., Sasaki, K., Nguele, R., & Sugai, Y. (2015). Numerical simulation study on gas miscibility of an oil field located in Afghanistan. In 21st Formation Evaluation Symposium of Japan [SPWLA-JFES-2015-H] Society of Petrophysicists and Well-Log Analysts.