Air injection low temperature oxidation process for enhanced oil recovery from light oil reservoirs. | [Mehran University Research Journal of Engineering and Technology • 2010]

Author(s):

1. Abdul Haque Tunio: Institute of Petroleum & Natural Gas Engineering, Mehran University of Engineering & Technology, Jamshoro, Sindh, Pakistan

2. Khanji Harijan: Department of Mechanical Engineering, Meharan University of Engineering and Technology, Jamshoro, Pakistan

3. Suhail Ahmed Soomro: Department of Chemical Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

Abstract:

This paper represents EOR (Enhanced Oil Recovery) methods to recover unswept oil from depleted light oil reservoirs. The essential theme here is the removal of oxygen at LTO (Low Temperature Oxidation) form the injected air for a light oil reservoir by means of some chemical reactions occurring between oil and oxygen. In-situ combustion process, HTO (High Temperature Oxidation) is not suitable for deep light oil reservoirs. In case of light oil reservoirs LTO is more suitable to prevail as comparative to HTO. Few laboratory experimental results were obtained from air injection process, to study the LTO reactions. LTO process is suitable for air injection rate in which reservoir has sufficiently high temperature and spontaneous reaction takes place. Out comes of this study are the effect of LTO reactions in oxygen consumption and the recovery of oil. This air injection method is economic compared to other EOR methods i.e. miscible hydrocarbon gas, nitrogen, and carbon dioxide flooding etc. This LTO air injection process is suitable for secondary recovery methods where water flooding is not feasible due to technical problems.

Page(s): 337-346

DOI: DOI not available

Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 29, Issue: 2, Year: 2010

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