Modeling of Inversion Point for Heavy Oil-Water Emulsion Systems
- Gizem Ersoy (University of Tulsa) | Mengjiao Yu (University of Tulsa) | Cem Sarica (University of Tulsa)
- Document ID
- Society of Petroleum Engineers
- SPE Projects, Facilities & Construction
- Publication Date
- June 2009
- Document Type
- Journal Paper
- 47 - 52
- 2009. Society of Petroleum Engineers
- 4.1.2 Separation and Treating, 4.3 Flow Assurance, 2.5.2 Fracturing Materials (Fluids, Proppant), 4.6 Natural Gas, 1.6 Drilling Operations, 5.3.2 Multiphase Flow, 4.1.5 Processing Equipment
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As the world's demand for oil increases, more heavy oil reservoirs are being discovered, drilled, and produced. However, heavy oil production brings new challenges. One of the challenges is the formation of emulsions. Emulsions can cause high pressure losses, resulting in transportation and pumping problems and separation. The inversion point, at which continuous and dispersed phases in an emulsion changes, needs to be studied to improve knowledge of heavy oil-water emulsions.
A new mathematical model was developed in this study using fundamental thermodynamics and conservation of mass laws to predict the inversion point of an emulsion system. Simulation results indicate that the properties of surfactant, emulsion droplet size, and standard chemical potentials of the liquid phases play a very important role in controlling the inversion point of an emulsion system. The model proposed in this paper can help predict inversion point of an emulsion system. Estimation of inversion point of emulsions helps improve the existing emulsion viscosity correlations and develop new models when necessary. The improved heavy oil-water emulsion viscosity models can be used in design and operation phases of heavy oil fields.
|File Size||319 KB||Number of Pages||6|
Arirachakaran, S., Oglesby, K.D., Malinowsky, M.S., Shoham, O., and Brill,J.P. 1989. An Analysis ofOil/Water Flow Phenomena in Horizontal Pipes. Paper SPE 18836 presented atthe SPE Production Operations Symposium, Oklahoma City, Oklahoma, USA, 13-14March. DOI: 10.2118/18836-MS.
Binks, B.P. 1993. Relationship between microemulsionphase behavior and macroemulsion type in systems containing nonionicsurfactant. Langmuir 9 (1): 25-28.DOI:10.1021/la00025a008.
Binks, B.P., Fletcher, P.D.I., and Taylor, D.J.F. 1997. Temperature insensitivemicroemulsions. Langmuir 13 (26): 7030-7038.DOI:10.1021/la970826n.
Brinkman, H.C. 1952. Theviscosity of concentrated suspensions and solutions. J. Chem. Phys.20 (4): 571. DOI:10.1063/1.1700493.
Einstein, A. 1906. A new determination of the molecular dimensions (Eineneue bestimmung der molekuldimension). Annalen Der Physik19 (2): 289-306.
Einstein, A. 1911. Correction to my work: A new determination of themolecular dimensions (Berichtigung zu meiner arbeit: Eine neue bestimmung dermolekuldimension). Annalen Der Physik 34 (3): 591-592.
Ersoy, G. 2005. Modeling of inversion point and assessment of heavy oilwater emulsion viscosity correlations. MS thesis, University of Tulsa, Tulsa,Oklahoma.
Krieger, I.M. 1972. Rheology of monodisperselatices. Advances in Colloid and Interface Science 3(2): 111-136. DOI:10.1016/0001-8686(72)80001-0.
Pal, R. and Rhodes, E. 1989. Viscosity/concentration relationshipsfor emulsions. J. Rheology 33 (7): 1021-1045.DOI:10.1122/1.550044.
Ravera, F., Ferrari, M., Liggieri, L., Miller, R., and Passerone, A. 1997.Measurement of the partitioncoefficient of surfactants in water/oil systems. Langmuir13 (18): 4817-4820. DOI:10.1021/la962096+.
Ruckenstein, E. 1988. Interfacial free energy, surfaceexcess, and stability of macroemulsions. Langmuir 4(6): 1318-1321. DOI:10.1021/la00084a020.
Ruckenstein, E. 1997. Phaseinversion temperatures of macro- and microemulsions. Langmuir13 (9): 2494-2497. DOI:10.1021/la9620364.
Yaron, I. and Gal-Or, B. 1972. On viscous flow and effectiveviscosity of concentrated suspensions and emulsions. Rheologica Acta11 (3-4): 241-252. DOI:10.1007/BF01974767.