Experimental Investigation on Asphaltene Deposition in Porous Media During Miscible Gas Injection

Document Type : Research Article


1 Research Institute of Petroleum Industry (R.I.P.I.), P.O. Box 18745-4163 Tehran, I.R. IRAN

2 Department of Chemical Engineering, Faculty of Engineering, Tarbiat Modares University, P.O. Box 14115-4838 Tehran, I.R. IRAN


In this work the likelihood of asphaltene deposition problems during dynamic displacement of oil by natural gas in unconsolidated porous media is experimentally inspected. The two different rock materials, limestone and sandstone, are used as a representative of porous media. Dynamic flow experiments indicate that the increase of natural gas injection increases asphaltene deposition in the unconsolidated matrix. The results of the study show that increase in asphaltene deposition leads to pore plugging, porosity reduction and absolute permeability damage. Irreducible water measurements showed that natural gas-induced asphaltenes change the rock wettability to oil-wet.


Main Subjects

[1] Sheu, E.Y. and Storm, D.A., “Colloidal Properties of Asphaltenes in Organic Solvents,” Asphaltenes-Fundamentals and Applications, E.Y. Sheu and O. Mullins (eds.), Plenum Press, New York City p. 1-52, (1995).
[2] Hirschberg, A., Dejong, L.N.J., Schnipper, B.A., Meijer, J.G., Influence of Temperature and Pressure on Asphaltene Flocculation, SPEJ June, 283, (1984).
[3] Mousavi Dehghani, S.A., Riazi, M.R., Vafaie Sefti M., Mansoori, G.A., An Analysis of Methods for Determination of Onsets of Asphaltene Phase Separations, Journal of Petroleum Science and Engineering, 42, 145-156, (2004).
[4] Leontaritis, K.J. and Mansoori, G.A., Asphaltene Deposition: A Survey of Field Experiences and Research Approaches, Journal of Petroleum Science and Engineering, 1, 229, (1988).
[5] Leontaritis, K.J., Amaefule, J.O. and Charles, R.E., A Systematic Approach for the Prevention and Treatment of Formation Damage Caused by Asphaltene Deposition, SPE Production & Facilities, p.157 (1994).
[6] De Pedroza, T. M., Calderon, G. G., Rico, P. A. Impact of Asphaltene Presence in Some Rock Properties, SPE Adv. Tech. Ser., 4, 185 (1996).
[7] Minssieux, L., Core Damage from Crude Asphaltene Deposition,  paper SPE 37250, (1997).
[8] Gonzelez, G. and Louvisse, A.M.T., The Adsorption of Asphaltenes and Its Effect on Oil Production, SPE 21039, (1991)
[9] Rayes, B.H., Pernyeszi, T., Lakatos, I., Comparative Study of Asphaltene Adsorption on Formation Rocks under Static and Dynamic Conditions, SPE 80265, (2003).
[10] Shedid  A . Shedid  and  Abdulrazag  Y.  Zekri, Formation Damage Caused by Simultaneous Sulfur and Asphaltene Deposition, SPE Production & Operations, 21(1), 58-64, (2006).
[11] Cimino,  R.,  Correra, S., Del Bianco, A., Lockhart, T.P., Solubility and Phase Behavior of Asphaltenes in Hydrocarbon Media, Asphaltenes: Fundumentals and Applications, Plenum Press, N.Y., 97-130 (1995).
[12] Monger, T.G. and Fu, J.C., The Nature of CO2 -Induced Organic Deposition, SPE Paper 16713, SPE Annual Tech. Conf. and Exhibition, Houston, TX, (1987).
[13] Monger,  T. G.,  and  Trujillo,  D. E.,  Organic Deposition During Carbon Dioxide and Rich-Gas Flooding , SPE Paper18063, SPE Annual Tech. Conf. and Exhibition, Houston, TX, (1988).
[14] Wolcott, J.M., Monger, T.G., Sassen, R. and Chinn, E.W., The Effects of CO2 Flooding on Resevoir Mineral Properties, SPE Paper 18467, SPE Annual Tech. Conf. and Exhibition, Houston, TX, (1989).
[15] Kamath, V.A., Yang, J. and Sharma, G.D., Effect of Asphaltene Deposition on Dynamic Displacements of Oil by Water, SPE Paper 26046, SPE Annual Tech. Conf. and Exhibition, Houston, TX, (1987).
[16] Srivastava,  R. K.  and  Huang, S. S., Asphaltene Deposition During CO2 Flooding, SPE Prod. & Facilities, 14 (4), 235 (1999).
[17] Benionn, D.B. and Thomas, B. The Use of Carbon Dioxide as an Enhanced Recovery Agent for Increasing Heavy Oil Production, Paper for Presentation at the Joint Canada/Romanla Heavy Oil Symposium, March 7-13 at Sinla, Romanla , (1993).
[18] Abdulrazag Y. Zekri and  Shedid Ali Shedid, The Effect of Fracture Characteristics on Reduction of Permeability by Asphaltene Precipitation in Carbonate Formation, Journal of Petroleum Science and Engineering, 42, 171 (2004).
[19] Danesh, A., Krinis, D., Henderson, G.D. and Peden, J.M., Asphaltene Deposition in Miscible Gas Flooding of Oil Reservoirs, Chem. Eng. Res. Des., 66, 339 (1988).
[20] Vafaie Sefti, M., Mousavi Dehghani., S.A. and Mohammad Zadeh, M.A., Simple Model for Asphaltene Deposition in Petroleum Mixtures, Fluid Phase Equilibria, 206, 1 (2003).
[21] Koka, J.S., Najman J., Sayegh, S.G., and George, A., Asphaltene Precipitation During Enhanced Recovery of Heavy Oils by Gas Injection, CIM/AOSTRA Paper 91-10, CIM/AOSTRA  Tech. Conf., Banff., April 21-24, Canada (1991).
[22] Hansen, P. W, A CO2 Tertiary Recovery Pilot-Little Creek Mississippi, SPE Paper 6747, SPE Annual Tech Conf. and Exhibition, Denver, Oct. 9-12, Colorado (1977).
[23] Stalkup, F. I.,  Carbon  Dioxide Miscible Flooding, Past, Present and the Outlook for Future, JPT, Aug., 1102-12, (1978).
[24] Harvey, M. f., Shelton, L.J. and Kelin, C. H., Field Injectivity Experiences will Miscible Recovery Projects Using Alternate Rich Gas and Water Injection, JPT, Sept., 1051-55, (1977).