Evaporative Weathering of Diluted Bitumen Films
- Harvey Yarranton (University of Calgary) | Hamad Reza Motahhari (University of Calgary) | Florian Schoeggl (University of Calgary) | John (Zhihong) Zhou (Alberta Innovates)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- July 2015
- Document Type
- Journal Paper
- 223 - 244
- 2015.Society of Petroleum Engineers
- evaporation, oil spill, weathering, physical properties, diluted bitumen
- 3 in the last 30 days
- 166 since 2007
- Show more detail
- View rights & permissions
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|SPE Non-Member Price:||USD 35.00|
One of the issues for the pipeline transportation of diluted bitumen (dilbit) is the fate and behaviour of the dilbit if it is spilled in freshwater systems; in particular, the evaporation rate and the change in physical properties of the film after evaporation and exposure to water (weathering). In this study, the evaporative weathering of dilbit Cold Lake Winter Blend (CLWB) and light crude oil Alberta Sweet Blend (ASB) films were compared. Evaporation rates were measured for films on glass over time (up to 30 days) at different air-flow rates and at temperatures of 5, 15, and 25C. The solvent content, density, and viscosity of the films were measured after different weathering times. A second set of tests at 15C was performed on both dilbit and light-crudeoil films on water. As expected, the mass-transfer rate increased with increasing temperature and decreasing film thickness in all cases. The evaporation of the dilbit was found to be limited by the diffusion rate of the lighter components through the film while that of the light crude oil was limited by convective mass transfer to the air above. The density and viscosity of both the CLWB and ASB films correlated to the amount of evaporated material at all conditions examined, including different film thicknesses, temperatures, and air-flow rates. It appears that the volatile components evaporate in the same order at any conditions; therefore, film composition, density, and viscosity are only functions of the amount evaporated. The evaporation rates, density, and viscosity of CLWB and ASB films weathered over water were identical to those corresponding films weathered on glass, within the error of the measurements; that is, contact with still water had no effect on weathering.
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Agrawal, P., Schoeggl, F. F., Satyro, M. A. et al. 2012. Measurement and Modeling of the Phase Behavior of Solvent Diluted Bitumens. Fluid Phase Equilib 334 (25 November 2012): 51-64. http://dx.doi.org/10.1016/j.fluid.2012.07.025.
Chebbi, R. 2000. Inertia-Gravity Spreading of Oil on Water. Chem Eng Sci 55 (21): 4953-4960. http://dx.doi.org/10.1016/S0009-2509(00)00129-9.
Dollhopf, R. H., Fitzpatrick, F. A., Kimble, J. W. et al. 2014. Response to Heavy, Non-Floating Oil Spilled in a Great Lakes River Environment: A Multiple-Lines-of-Evidence Approach for Submerged Oil Assessment and Recovery. International Oil Spill Conference Proceedings 2014 (1): 434-448. http://dx.doi.org/10.7901/2169-3358-2014.1.434.
Drelich, J., Lelinski, D., and Miller, J. D. 1996. Bitumen Spreading and Formation of Thin Bitumen Films at a Water Surface. Colloids Surf, A 116 (1-2): 211-223. http://dx.doi.org/10.1016/0927-7757(96)03652-7.
Ellenberger, J. and Fortuin, J. M. H. 1985. A Criterion for Purely Tangential Laminar Flow in the Cone-and-Plate Rheometer and the Parallel-Plate Rheometer. Chem Eng Sci 40 (1): 111-116. http://dx.doi.org/10.1016/0009-2509(85)85051-X.
Environment Canada. 2013. Properties, Composition and Marine Spill Behaviour, Fate and Transport of Two Diluted Bitumen Products from the Canadian Oil Sands, 2013, ISBN 978-1-100-23004-7 Cat. No.: 84-96/2013E-PDF. http://www.ec.gc.ca/Publications/default.asp?lang=En&xml=D6AB8B67-73F5-48B6-B3D1-AAE1B06FF9A2.
Fingas, M. 2011. Introduction to Spill Modeling. In Oil Spill Science and Technology, edition. ed. M. Fingas, Vol. Chap. 8, 187-200. Amsterdam: Elsevier.
Fingas, M. F. 2013. Modeling Oil and Petroleum Evaporation. Journal of Petroleum Science Research 2 (3): 104-115.
Fingas, M. and Fieldhouse, B. 2004. Formation of Water-in-Oil Emulsions and Application to Oil Spill Modelling. J Hazard Mater 107 (1-2): 37-50. http://dx.doi.org/10.1016/j.jhazmat.2003.11.008.
Gong, Y., Zhao, X., Cai, Z. et al. 2014. A Review of Oil, Dispersed Oil and Sediment Interactions in the Aquatic Environment: Influence on the Fate, Transport and Remediation of Oil Spills. Mar Pollut Bull 79 (1-2): 16-33. http://dx.doi.org/10.1016/j.marpolbul.2013.12.024.
Hollebone, B. 2011. Measurement of Oil Physical Properties. In Oil Spill Science and Technology, first edition. ed. M. Fingas, Vol. Chap. 4, 63-86. Amsterdam: Elsevier.
Jia, N. 2007. Effect of Residual Oxygen in Combined CO2 Flooding and Sequestration Process. PhD thesis, University of Calgary, Calgary.
Loh, A., Shim, W., Ha, S. et al. 2014. Oil-Suspended Particulate Matter Aggregates: Formation Mechanism and Fate in the Marine Environment. Ocean Sci J 49 (4): 329-341. http://dx.doi.org/10.1007/s12601-014-0031-8.
Masliyah, J. H., Xu, Z., and Czarnecki, J. A. 2011. Handbook on Theory and Practice of Bitumen Recovery from Athabasca Oil Sands, first edition, Volume 1: Theoretical Basis. Calgary: Kingsley Publishing Services.
Michel, J. 2011. Submerged Oil. In Oil Spill Science and Technology, first edition. ed. M. Fingas, Vol. Chap. 26, 959-981. Amsterdam: Elsevier.
Motahhari, H., Schoeggl, F., Satyro, M. et al. 2013. Viscosity Prediction for Solvent-Diluted Live Bitumen and Heavy Oil at Temperatures up to 175-Deg-C. J Can Pet Technol 52 (05): 376-390. SPE-149405-PA. http://dx.doi.org/10.2118/149405-PA.
National Academy of Sciences. 2015. Effects of Diluted Bitumen on the Environment: A Comparative Study. http://nas-sites.org/dilbit/ (downloaded 1 January 2015).
National Oceanic and Atmospheric Administration. 2013. Transporting Alberta Oil Sands Products: Defining the Issues and Assessing the Risks, NOAA Technical Memorandum NOS OR&R 44: 152.
Payne, J. R., Clayton Jr., J. R., and Kirstein, B. E. 2003. Oil/Suspended Particulate Material Interactions and Sedimentation. Spill Science & Technology Bulletin 8 (2): 201-221. http://dx.doi.org/10.1016/S1353-2561(03)00048-3.
Schramm, L. L. 2006. Emulsions, Foams, and Suspensions: Fundamentals and Applications, first edition. Emulsions, Foams, and Suspensions, Wiley-VCH Verlag GmbH & Co.
Simecek-Beatty, D. 2011. Oil Spill Trajectory Forecasting Uncertainty and Emergency Response. In Oil Spill Science and Technology, first edition. ed. M. Fingas, Vol. Chap. 11, 275-299. Amsterdam: Elsevier.
Spaulding, M. L. 1988. A State-of-the-Art Review of Oil Spill Trajectory and Fate Modeling. Oil Chem Pollut 4 (1): 39-55. http://dx.doi.org/10.1016/S0269-8579(88)80009-1.
Swift, A., Casey-Lefkowitz, S., and Shope. 2011. Tar Sands Pipelines Safety Risks. Natural Resources Defense Council, National Wildlife Federation, Pipeline Safety Trust, and Sierra Club, New York (February 2011). http://www.nrdc.org/energy/files/tarsandssafetyrisks.pdf.
WPW (Witt O'Briens, Polaris Applied Sciences, and Western Canada Marine Response Corporation). 2013. A study of fate and behavior of diluted bitumen oils on marine waters. Report prepared for Trans Mountain Pipeline. http://www.transmountain.com/uploads/papers/1391734754-astudyoffateandbehaviourofdilutedbitumenoilsonmarinewater.pdf. Accessed on 17 March 2015.
Yapa, P. D. and Tao Shen, H. 1994. Modelling River Oil Spills: A Review. Journal of Hydraulic Research 32 (5): 765-782. http://dx.doi.org/10.1080/00221689409498713.
Yarranton, H., van Dorp, J., Verlaan, M. et al. 2013. Wanted Dead or Live: Crude-Cocktail Viscosity--a Pseudocomponent Method to Predict the Viscosity of Dead Oils, Live Oils, and Mixtures. J Can Pet Technol 52 (03): 176-191. SPE-160314-PA. http://dx.doi.org/10.2118/160314-PA.