Laboratory and Theoretical Determination of Asphaltene Precipitation/Deposition/Inhibition in Canadian Oil Reservoirs

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Asphaltenes are chemical aromatic compounds that may precipitate at certain thermodynamic conditions and fluid characteristics. Oil production and transportation operations can be affected by asphaltene precipitation/deposition through wettability alteration and blockage mechanisms. This undesirable behavior is found in many oil reservoirs across Canada, resulting in significant capital / operating costs and environmental issues. Further understanding and more accurate prediction of asphaltene characteristics and precipitation/deposition processes in reservoir rocks are vital for better design, implementation, and control of oil production operations.