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Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters

Navab Rostami ; Islamic Azad University, Science and Research Branch, Tehran, Iran
Ghasem Zargar ; Petroleum University of Technology, Tehran, Iran
Abdolnabi Hashemi ; Petroleum University of Technology, Tehran, Iran
Jamshid Aladaghloo ; Islamic Azad University, Science and Research Branch, Tehran, Iran

Fulltext: english, pdf (550 KB) pages 135-141 downloads: 1.446* cite
APA 6th Edition
Rostami, N., Zargar, G., Hashemi, A. & Aladaghloo, J. (2013). Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters. Nafta, 64 (2), 135-141. Retrieved from https://hrcak.srce.hr/111091
MLA 8th Edition
Rostami, Navab, et al. "Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters." Nafta, vol. 64, no. 2, 2013, pp. 135-141. https://hrcak.srce.hr/111091. Accessed 20 Sep. 2020.
Chicago 17th Edition
Rostami, Navab, Ghasem Zargar, Abdolnabi Hashemi and Jamshid Aladaghloo. "Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters." Nafta 64, no. 2 (2013): 135-141. https://hrcak.srce.hr/111091
Harvard
Rostami, N., et al. (2013). 'Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters', Nafta, 64(2), pp. 135-141. Available at: https://hrcak.srce.hr/111091 (Accessed 20 September 2020)
Vancouver
Rostami N, Zargar G, Hashemi A, Aladaghloo J. Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters. Nafta [Internet]. 2013 [cited 2020 September 20];64(2):135-141. Available from: https://hrcak.srce.hr/111091
IEEE
N. Rostami, G. Zargar, A. Hashemi and J. Aladaghloo, "Immiscible-Recycle Gas Injection to Enhance Recovery in an Iranian Naturally Fractured Reservoir: a Case Study with Emphasis on Uncertain Parameters", Nafta, vol.64, no. 2, pp. 135-141, 2013. [Online]. Available: https://hrcak.srce.hr/111091. [Accessed: 20 September 2020]
Fulltext: croatian, pdf (92 KB) pages 142-146 downloads: 238* cite
APA 6th Edition
Rostami, N., Zargar, G., Hashemi, A. & Aladaghloo, J. (2013). Injektiranje recikliranog nemiscibilnog plina u prirodno raspucano ležište Irana, u svrhu povećanja iscrpka: studija slučaja s naglaskom na nesigurne parametre. Nafta, 64 (2), 142-146. Retrieved from https://hrcak.srce.hr/111091
MLA 8th Edition
Rostami, Navab, et al. "Injektiranje recikliranog nemiscibilnog plina u prirodno raspucano ležište Irana, u svrhu povećanja iscrpka: studija slučaja s naglaskom na nesigurne parametre." Nafta, vol. 64, no. 2, 2013, pp. 142-146. https://hrcak.srce.hr/111091. Accessed 20 Sep. 2020.
Chicago 17th Edition
Rostami, Navab, Ghasem Zargar, Abdolnabi Hashemi and Jamshid Aladaghloo. "Injektiranje recikliranog nemiscibilnog plina u prirodno raspucano ležište Irana, u svrhu povećanja iscrpka: studija slučaja s naglaskom na nesigurne parametre." Nafta 64, no. 2 (2013): 142-146. https://hrcak.srce.hr/111091
Harvard
Rostami, N., et al. (2013). 'Injektiranje recikliranog nemiscibilnog plina u prirodno raspucano ležište Irana, u svrhu povećanja iscrpka: studija slučaja s naglaskom na nesigurne parametre', Nafta, 64(2), pp. 142-146. Available at: https://hrcak.srce.hr/111091 (Accessed 20 September 2020)
Vancouver
Rostami N, Zargar G, Hashemi A, Aladaghloo J. Injektiranje recikliranog nemiscibilnog plina u prirodno raspucano ležište Irana, u svrhu povećanja iscrpka: studija slučaja s naglaskom na nesigurne parametre. Nafta [Internet]. 2013 [cited 2020 September 20];64(2):142-146. Available from: https://hrcak.srce.hr/111091
IEEE
N. Rostami, G. Zargar, A. Hashemi and J. Aladaghloo, "Injektiranje recikliranog nemiscibilnog plina u prirodno raspucano ležište Irana, u svrhu povećanja iscrpka: studija slučaja s naglaskom na nesigurne parametre", Nafta, vol.64, no. 2, pp. 142-146, 2013. [Online]. Available: https://hrcak.srce.hr/111091. [Accessed: 20 September 2020]

Abstracts
Recycle-gas injection is a promising recovery process to produce oil and gas. The method uses continues injection of the produced gas at economical rates to keep the reservoirs energy up and using viscous force as the driving force. There are numerous studies done on recycle-gas injection in conventional reservoirs, however, there are some other factors such as location of wells and completion type, rate and pressure of injection which highly affect the final result of this method and failed to be considered in the majority of them.
In this study, we investigate the immiscible recycle gas injection process in one of the Iranian carbonate naturally fractured reservoirs on a field scale. The real heterogeneous model was constructed and simulated by Eclipse-100 module. The effects of operational parameters, such as number and location of injection/production wells, production/injection rate, completion type and interval, on the immiscible gas injection performance were investigated and the result were compared with natural depletion method.
It was found that, in sensitivity with number of the wells, 1 injection/2 production wells was the most efficient case. Also well oil production rate of 3 145 bbl/d (500 m3/d) and well bottom-hole pressure of 25 bar provided higher oil recovery. Completing of the injection wells in fracture and production wells in matrix has a better field oil efficiency in comparison to the other cases. Moreover, it was observed that the most efficient type of well completion for injection well is vertical and for production wells are horizontal. The results revealed that the substantial secondary oil recovery can be achieved using optimum conditions for immiscible recycle gas injection in this reservoir.

Keywords
Immiscible-recycle gas; fractured reservoirs; secondary recovery; operational parameters

Hrčak ID: 111091

URI
https://hrcak.srce.hr/111091

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