Revisiting Thomson equation for accurate modeling of pore scale thermodynamics of hydrocarbon solvents

摘要: As stated by the classical Thomson equation, pore scale thermodynamics of a solvent is different from bulk conditions, being critically controlled capillary characteristics. This equation shows that boiling point temperatures decrease remarkably as size becomes smaller, after threshold value. paper experimentally investigates this phenomenon for hydrocarbon solvents and compares results with values, obtained to test its applicability in modeling heavy-oil recovery under nonisothermal conditions. an initial step, two single-component (heptane decane) were measured saturating Hele-Shaw type cells variable apertures (ranging 0.04 mm 5 mm) monitoring process. One experiment was run thickness 12 represent case. aperture (pore size) became temperature decreased. For example, heptane decane approximately 58 °C 107 values less than 0.15 mm, which considerably lower “bulk” (around 40%). In next same experiments repeated using micromodels, representing porous media. Using points selected liquids mathematically computed compared experimental micromodel experiments. Finally, modifications alternative formulations suggested.As temp...