... enhanced recovery tar sand reservoir geochemistry viscosity composition gradient compositional gradient modeling & simulation reservoir simulation porosity fluid property reservoir reservoir characterization permeability saturation biodegradation heterogeneity viscosity...

... chromatography. Results and Discussion Compositional gradient from the Liaohe case study The bulk composition data (saturated hydrocarbons, aromatic hydrocarbons, resins and asphaltenes) obtained by Iatroscan analysis enabled an assessment of the compositional changes occurring within each oil column. Variations...

... evaluated the performance of MBO model by investigating: the effects of black-oil PVT table generation methods from a tuned equation-of-state, oil-gas ratio (OGR) and saturation pressure versus depth as initialization methods, uniform composition versus compositional gradient with depth, location...