Numerical simulation study on gas miscibility of anoil field located in Afghanistan

Mohammad Reza Ghulami, Kyuro Sasaki, Yuichi Sugai, Ronald Nguele

Research output: Contribution to conferencePaperpeer-review


In this study, a reservoir modeling approach was used to evaluate the miscibility conditionsfor an Afghan oil reservoir. A model of slim-tube apparatus was built for compositional simulation in CMG-GEM. Minimum miscibility pressure/enrichment(MMP/MME) ofcrude oil-gas (carbon dioxide, methane and nitrogen) systemswere determined by slim-tube simulation. To study the reservoir performance undereach injection gasprocess, we built a quarter of five spot pattern model. The model was assumed to represent a homogeneous section of the reservoir. Simulation resultsof slim-tube testsuggest that, to be miscible with reservoir oil, carbon dioxide requires less addition of enriched gas comparing to nitrogen ormethane. But,the reservoirsection modelshowed thata miscible nitrogeninjectionis better, with higher oil recovery factor than that of miscible carbon dioxide ormethane.

Original languageEnglish
Publication statusPublished - 2015
Event21st Formation Evaluation Symposium of Japan 2015 - Chiba, Japan
Duration: Oct 13 2015Oct 14 2015


Other21st Formation Evaluation Symposium of Japan 2015

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Economic Geology
  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology
  • Geology


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