The Effects of Combination of Steam Flooding, CO2 and Cyclic Steam Stimulation Injection Pilot Test in Heavy Oilfield in Sudan

Mohammed Abdalraheem, Sutopo Sutopo, Ivan Kurnia


Applications of Enhanced Oil Recovery (EOR) are highly required and needed in Sudan to keep oil supply at stable levels. ”FUL” Oilfield in Sudan has shallow reservoir affected by big boundary and bottom water drive with high crude oil viscosity. This research, through a comprehensive analysis of the current producing wells, perforation intervals, CO2 temperature analysis, steam parameters optimization which using two approaches (deterministic and stochastic) were analyzed, using a combination of continues steam flooding, CO2 assisted steam flooding, and cyclic steam stimulation in the pilot test sector. CMG-STARS and CMOST AI simulators software was used in this study. By determining recovery factor (RF) as objective function. It could conclude that: CO2 assisted steam flooding even it could decrease the water cut, but its effect to increase the oil recovery factor is not considerable. Continuous steam flooding has the best oil recovery from these three methods.


Heavy-Oil, Enhanced Oil Recovery (EOR), Steam Flood, Recovery Factor (RF), CO2, CSS, CMG, CMOST.

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Boon, J. A., 1984, Chemistry In Enhanced Oil

Recovery- An Overview, Petroleum Society of

Canada, Journal of Canadian Petroleum Technology.doi:10.2118/84-01-08.

Bagci, A. S., Gumrah. F., 2004, Effect of CO2 and

CH4 addition to steam on recovery of west Kozluca heavy oil, SPE 86953.

Petro-Energy., 2019, The annual Development technical Report, Petro-Energy Company, SUDAN.

Petro-Energy, 2020, The annual Development technical Report, Petro-Energy Company, SUDAN.

Husham Elbaloula, Hao Pengxiang, Talal

Elammas, Fahmi Alwad, Mosab Rdwan,

Mustafa Abdelsalam and Tagwa Musa, 2016, Designing and Implementation of the First Steam

Flooding Pilot Test in Sudanese Oil Field and

Africa, Society of Petroleum Engineers Saudi

Arabia, 25–28.

Elbaloula and Musa, 2018, The Challenges of

Cyclic Steam Stimulation (CSS) to Enhanced Oil

Recovery (EOR) in Sudanese Oil Field, Proceedings of the International Conference on Industrial

Engineering and Operations Management Bandung, Indonesia, March 6-8.

Elbaloula, Chen Jin’e, Tang Zichang, Wang

Yu, Mohammed Abdelmajeed and Mosab F.

Hamd, 2020, Feasibility study and numerical

simulation to design the steam flooding pilot test

patterns, Journal of Petroleum Exploration and

Production Technology 10:2559–2573.

Opec., 2021, Monthly Oil Market Report, https:// ,Page 05.

SMEM, 2020, Sudanese Ministry of Energy and


Prats, M., 1982, Thermal recovery, No. 7. Richardson, Texas: Monograph Series, SPE, USA.

Wang, R., Wu, X., Yuan, X., Wang, L.,

Zhang, X., and Yi, X., 2011, First

Cyclic Steam Stimulation Pilot Test in Sudan: A

Case Study in Shallow Heavy Oil Reservoir, Society of Petroleum Engineers. doi:10.2118/144819-

MS. Kuala Lumpur, Malaysia.

Yongbin Wu, Y., Li, X., Liu, S., Ma, D., and

Jiang, Y., 2013, EOR Strategies for a Conventional Heavy Oil Reservoir with Large Aquifer in

Greater Fula Oilfield, Sudan. Society of Petroleum Engineers. doi:10.2118/165239-MS. Kuala

Lumpur, Malaysia.

Zhao, D. W., Wang, J., Gates, I. D., 2013, Optimized solvent-aided steam-flooding strategy for

recovery of thin heavy oil reservoirs, Fuel, 112:


Jones, J., McWilliams M., Sturm D., 1995, Kern

river revisited: life after steam flood. Society of

Petroleum Engineers. SPE Western Regional

Meeting, 8–10 March, Bakersfield, California



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