Alagorni, Abubaker H. and Zulkefli, Yaacob and Nour, A. H. and Radzuan, Junin (2019) Effect of Water Alternating Gas (WAG-N2 ) after Water or Gas Flooding on Crude Oil Recovery in Sandstone Reservoirs. In: IOP Conference Series: Materials Science and Engineering, Energy Security and Chemical Engineering Congress , 17-19 July 2019 , Kuala Lumpur, Malaysia. pp. 1-15., 736 (022015). ISSN 1757-899X
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Abstract
Previous studies showed that nitrogen injection could recover oil up to 45-90 % of the Original Oil in Place (OOIP) of the reservoir. Additionally, when applying Water Alternating Gas (WAG-N2), recovery can be improved by combining gas and water and having better gas mobility control by reducing viscous fingering and density tonging, as well as contacting the un-swept zones, leading to an improved microscopic displacement. The objective of this study is to determine the total Oil Recovery Factor (ORF) of WAG-N2 process either after Water Flooding (WF) or after Gas Flooding (GF) in sandstone reservoirs. The results showed that with the following conditions: 38.8° API gravity oil, injection rate of 0.6cm3/m, injection pressure of 2000 psi (1378.59 kpa), WAG rate of 1:1, and Sand pack temperature of 70°C, the maximum ultimate ORF was 71.2 % in WAG after WF and 52.42 % of WAG after GF. On the other hand, WF provided ORF of 65.6 % when compared with GF recovery (29.03 %).
| Item Type: | Conference or Workshop Item (Lecture) |
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| Uncontrolled Keywords: | Water Alternating Gas (WAG-N2), Oil Recovery Factor (ORF) |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering Institute of Postgraduate Studies |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 11 May 2021 00:57 |
| Last Modified: | 11 May 2021 00:57 |
| URI: | http://umpir.ump.edu.my/id/eprint/25344 |
| Download Statistic: | View Download Statistics |
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