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    • ISSN: 2010-0264
    • Frequency: Bimonthly (2010-2014); Monthly (Since 2015)
    • DOI: 10.18178/IJESD
    • Editor-in-Chief: Prof. Richard Haynes
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Editor-in-chief
The University of Queensland, Australia
It is my honor to be the editor-in-chief of IJESD. The journal publishes good papers in the field of environmental science and development.
IJESD 2014 Vol.5(2): 142-146 ISSN: 2010-0264
DOI: 10.7763/IJESD.2014.V5.466

Experimental and Theoretical Investigation of the CO2 Minimum Miscibility Pressurefor the Omani Oils for CO2 Injection EOR Method

Khalid Al-Hinai, Ali Al-Bemani, and Gholamreza Vakili-Nezhaad
Abstract—In Oman there are still large remaining oil reserves that require implementation of Enhanced Oil Recovery processes such as CO2 injection, for light oil. CO2-Oil Minimum Miscibility Pressure (MMP) is the key parameter for the design and operations of successful CO2 flood. This study is based on developing a method of calculating the MMP for Omani oil reservoirs. Part-1 of the studyis the experimental work based on the Rising Bubble Apparatus (RBA) measurement of MMP and part-2 is the examination of the existing models for MMP predictions and the adjustment of parameters for obtaining the most accurate predictions by the equation of state fluid PVT modeling simulator PVTPro5.2.1software. The RBA system set-up was successfully developed for the first time at Sultan Qaboos University. CO2 MMP measurements were carried out for three different oil samples using the RBA. For the RBA experiments, the PVTPro5.2.1 simulator was used to adjust the best setting parameters for CO2 MMP predictions. Very good agreement between the experimental MMP and the software predictions were achieved within the range of 2.27% error maximum. Moreover, some existing well-known models have been examined for CO2–Oil MMP predictions with the observed errors of up to 43.55%.

Index Terms—CO2 injection, Equation of state simulator software, Minimum Miscibility Pressure, and Rising Bubble Apparatus.

Khalid Al-Hinai is with the Department of Petroleum & Chemical Engineering, Sultan Qaboos University (e-mail: p087791@squ.edu.om).

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Cite:Khalid Al-Hinai, Ali Al-Bemani, and Gholamreza Vakili-Nezhaad, "Experimental and Theoretical Investigation of the CO2 Minimum Miscibility Pressurefor the Omani Oils for CO2 Injection EOR Method," International Journal of Environmental Science and Development vol. 5, no. 2, pp. 142-146, 2014.

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