Phase Behaviour of C3H8/n-C4H10/Heavy-Oil Systems at High Pressures and Elevated Temperatures
- Huazhou Li (University of Regina) | Daoyong (Tony) Yang (University of Regina)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- January 2013
- Document Type
- Journal Paper
- 30 - 40
- 2013. Society of Petroleum Engineers
- 1.8 Formation Damage, 4.3.3 Aspaltenes, 5.2.1 Phase Behavior and PVT Measurements, 5.2.2 Fluid Modeling, Equations of State
- 1 in the last 30 days
- 785 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
Phase behaviour of C3H8/n-C4H10/heavy-oil systems at high pressures and elevated temperatures has been experimentally and theoretically investigated. Experimentally, a versatile pressure/volume/temperature (PVT) system is used to determine the liquid/vapour phase boundary (i.e., saturation-pressure lines) and swelling factors of C3H8/n-C4H10/heavy-oil systems with varying compositions at high pressures up to 5030.0 kPa and elevated temperatures up to 396.15 K. During the experiments, heavy oil is added continuously into the solvent and the injection process can be terminated within a short period. No noticeable asphaltene precipitation has been observed throughout the measurements for the four mixtures. The viscosities of the corresponding solvent(s)-saturated heavy-oil systems are measured by using a customized capillary viscometer at 298.85 K. Theoretically, the volume-translated Peng-Robinson equation of state (PR EOS) (Peng and Robinson 1976) with a modified alpha function is used to model the experimental phase behaviour of C3H8/n-C4H10/heavy-oil systems. Two binary-interaction-parameter (BIP) correlations, respectively developed for the C3H8/heavy-oil system and n-C4H10/heavy-oil system, are incorporated into the volume-translated PR EOS model. The two BIP correlations together with the volume-translated PR EOS are found to be capable of predicting the saturation pressures and swelling factors of the C3H8/n-C4H10/heavy-oil systems with a good accuracy, although the prediction accuracy is reduced at temperatures close to the critical temperature of a pure solvent. In addition, comparison of five commonly used mixing rules indicates that the Lobe's mixing rule (Lobe 1973) is more appropriate to predict the viscosity of heavy oil diluted by C3H8 and/or n-C4H10.
|File Size||653 KB||Number of Pages||11|
Al-Bahlani, A.-M. and Babadagli, T. 2011. Steam-over-Solvent Injection inFractured Reservoirs (SOS-FR) Technique as a New Approach for Heavy-Oil andBitumen Recovery: An Overview of the Method. Energy Fuels 25(10): 4528-4539. http://dx.doi.org/10.1021/ef200809z.
Badamchi-Zadeh, A., Yarranton, H.W., Svrcek, W.Y. et al. 2009. PhaseBehaviour and Physical Property Measurements for VAPEX Solvents: Part I.Propane and Athabasca Bitumen. J Can Pet Technol 48 (1):54-61. PETSOC-09-01-54. http://dx.doi.org/10.2118/09-01-54.
Chung, F.T.H., Jones, R.A., and Nguyen, H.T. 1988. Measurements andCorrelations of the Physical Properties of CO2/Heavy-Crude-Oil Mixtures. SPERes Eng 3 (3): 822-828. SPE-15080-PA. http://dx.doi.org/10.2118/15080-PA.
Cragoe, C.S. 1933. Changes in the Viscosity of Liquids with Temperature,Pressure and Composition. Proc., 1st World Petroleum Congress, London,18-24 July, 529-541, Paper WPC 201.
Das, S.K. and Butler, R.M. 1996. Diffusion Coefficients of Propane andButane in Peace River Bitumen. Can. J. Chem. Eng. 74 (6):985-992. http://dx.doi.org/10.1002/cjce.5450740623.
Freitag, N.P., Sayegh, S.G., and Exelby, R. 2005. A New SemiautomaticPVT Apparatus for Characterizing Vapex Systems. Presented at theSPE/PS-CIM/CHOA International Thermal Operations and Heavy Oil Symposium,Calgary, 1-3 November. SPE-97783-MS. http://dx.doi.org/10.2118/97783-MS.
Gonçalves, F.A.M.M., Trindade, A.R., Costa, C.S.M.F. et al. 2010. PVT,viscosity, and surface tension of ethanol: New measurements and literature dataevaluation. The Journal of Chemical Thermodynamics 42 (8):1039-1049. http://dx.doi.org/10.1016/j.jct.2010.03.022.
Ivory, J., Chang, J., Coates, R. et al. 2010. Investigation of CyclicSolvent Injection Process for Heavy Oil Recovery. J Can Pet Technol 49 (9): 22-33. SPE-140662-PA. http://dx.doi.org/10.2118/140662-PA.
Kesler, M.G. and Lee, B.I. 1976. Improved Prediction of Enthalpy ofFractions. Hydrocarb. Process. 55 (3): 153-158.
Kumar, R. and Mahadevan, J. 2012. Well-Performance Relationships inHeavy-Foamy-Oil Reservoirs. SPE Prod & Oper 27 (1):94-105. SPE-117447-PA. http://dx.doi.org/10.2118/117447-PA.
Lee, B.I. and Kesler, M.G. 1975. A generalized thermodynamic correlationbased on three-parameter corresponding states. AIChE J. 21 (3):510-527. http://dx.doi.org/10.1002/aic.690210313.
Li, H. and Yang, D. 2010. Modified a Function for the Peng-Robinson Equationof State To Improve the Vapor Pressure Prediction of Non-hydrocarbon andHydrocarbon Compounds. Energy Fuels 25 (1): 215-223. http://dx.doi.org/10.1021/ef100927z.
Li, H., Yang, D., and Tontiwachwuthikul, P. 2012. Experimental andTheoretical Determination of Equilibrium Interfacial Tension for theSolvent(s)-CO2-Heavy Oil Systems. Energy Fuels 26 (3):1776-1786. http://dx.doi.org/10.1021/ef201860f.
Li, H.Z., Zheng, S., and Yang, D.T. 2011. Enhanced Swelling Effect andViscosity Reduction of Solvents-CO2-Heavy Oil Systems. Presented at the SPEHeavy Oil Conference and Exhibition, Kuwait City, Kuwait, 12-14 December.SPE-150168-MS. http://dx.doi.org/10.2118/150168-MS.
Lobe, V.M. 1973. A model for the viscosity of liquid-liquid mixtures.MSc thesis, University of Rochester, Rochester, New York.
Luo, P., Yang, C., and Gu, Y. 2007. Enhanced solvent dissolution intoin-situ upgraded heavy oil under different pressures. Fluid PhaseEquilib. 252 (1-2): 143-151. http://dx.doi.org/10.1016/j.fluid.2007.01.005.
Mehra, R.K. 1981. The computation of multi-phase equilibrium incompositional reservoir studies. PhD dissertation, University of Calgary,Calgary.
Pathak, V., Babadagli, T., and Edmunds, N.R. 2011. Heavy oil andbitumen recovery by hot solvent injection. J. Pet. Sci. Eng. 78 (3-4): 637-645. http://dx.doi.org/10.1016/j.petrol.2011.08.002.
Péneloux, A., Rauzy, E., and Fréze, R. 1982. A consistent correlationfor Redlich-Kwong-Soave volumes. Fluid Phase Equilib. 8 (1):7-23. http://dx.doi.org/10.1016/0378-3812(82)80002-2.
Peng, D.-Y. and Robinson, D.B. 1976. A New Two-Constant Equation of State.Industrial & Engineering Chemistry Fundamentals 15 (1):59-64. http://dx.doi.org/10.1021/i160057a011.
Rezaei, N., Mohammadzadeh, O., and Chatzis, I. 2010. Warm VAPEX: AThermally Improved Vapor Extraction Process for Recovery of Heavy Oil andBitumen. Energy Fuels 24 (11): 5934-5946. http://dx.doi.org/10.1021/ef100749z.
Shu, W.R. 1984. A Viscosity Correlation for Mixtures of Heavy Oil, Bitumen,and Petroleum Fractions. SPE J. 24 (3): 277-282.SPE-11280-PA. http://dx.doi.org/10.2118/11280-PA.
Singh, R. and Babadagli, T. 2011. Mechanics and Upscaling of Heavy OilBitumen Recovery by Steam-Over-Solvent Injection in Fractured ReservoirsMethod. J Can Pet Technol 50 (1): 33-42. SPE-132459-PA. http://dx.doi.org/10.2118/132459-PA.
Søreide, I. 1989. Improved phase behavior predictions of petroleumreservoir fluids from a cubic equation of state. PhD dissertation,Department of Petroleum Technology and Applied Geophysics, Norwegian Instituteof Technology (NTH), Trondheim, Norway (April 1989).
Teja, A.S. and Sandler, S.I. 1980. A Corresponding States equation forsaturated liquid densities. II. Applications to the calculation of swellingfactors of CO2--crude oil systems. AIChE J. 26(3): 341-345. http://dx.doi.org/10.1002/aic.690260303.
Turta, A., Maini, B.B., and Jackson, C. 2003. Mobility of Gas-in-OilDispersion in Enhanced Solution Gas Drive (Foamy Oil) Exploitation of Heavy oilReservoirs. J Can Pet Technol 42 (3): 48-55. PETSOC03-03-05. http://dx.doi.org/10.2118/03-03-05.
Upreti, S.R., Lohi, A., Kapadia, R.A. et al. 2007. Vapor Extraction of HeavyOil and Bitumen: A Review. Energy Fuels 21 (3): 1562-1574.http://dx.doi.org/10.1021/ef060341j.
Yaws, C.L. 2003. Yaws' handbook of thermodynamic and physical propertiesof chemical compounds. Knovel Corporation, http://www.knovel.com/knovel2/Toc.jsp.[QUERY: title not found, broken link]
Yazdani, A. and Maini, B.B. 2010. Measurements and Modelling of PhaseBehaviour and Viscosity of a Heavy Oil/Butane System. J Can Pet Technol 49 (2): 9-14. SPE-132484-PA. http://dx.doi.org/10.2118/132484-PA.
Younglove, B.A. and Ely, J.F. 1987. Thermophysical Properties of Fluids. II.Methane, Ethane, Propane, Isobutane and Normal Butane. J. Phys. Chem. Ref.Data 16 (4): 577-798.
Zhao, L. 2007. Steam Alternating Solvent Process. SPE Res Eval &Eng 10 (2): 185-190. SPE-86957-PA. http://dx.doi.org/10.2118/86957-PA.