Experimental Study of the Phase Behavior of Hydrocarbon Fluids in Porous Media at Atmospheric and Elevated Pressures

Abstract

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Experiments of Vapor–Liquid Phase Transition of Fluids Confined in Nanopores: Implications on Modeling

“…For example, Luo and co-workers studied the bubble point of hydrocarbons in different synthetic nanoporous media with a narrow pore size distribution 64,65 and in mixtures of different porous media mimicking natural shale rocks having a broad pore size distribution. 66 70 Conflicting conclusions have been drawn among these studies, although a similar method, i.e., an isobaric heating process of an open system in the presence of nanoporous media, has been used. The bubble point temperature of confined fluid was found to be higher than that in bulk, in some of the works, 65,66,69,70 while lower in others.…”

Interfacial and Confinement-Mediated Organization of Gas Hydrates, Water, Organic Fluids, and Nanoparticles for the Utilization of Subsurface Energy and Geological Resources

“…The melting and boiling points of hydrocarbons, dissociation glass transition, and temperatures of crystallization have been extensively investigated using differential scanning calorimetry (DSC) measurements. ,− In particular, boiling points of hydrocarbons under confinement were examined using DSC. ,− ,,, DSC thermograms of octane and decane in controlled pore glasses (CPGs) with 4.3 nm of pores and the results showed two DSC peaks including a second boiling point, which was observed at a higher temperature than in the bulk fluid . Two endothermic DSC peaks of decane in nanoporous monoliths have been reported .…”

“…Boiling points of three different hydrocarbons (e.g., decane, clay basin oil, and pyridine) in kerogen were investigated, and their impacts on swelling and confinement were considered . The boiling points of hydrocarbon fluids in porous media including a tight chalk formation at elevated pressures were also recently reported . While most of these studies were reported in the context of hydrocarbon recovery, anomalous phase transitions of emerging working fluids including CO 2 in multiphase environments need to be investigated.…”

“…243,249−259 In particular, boiling points of hydrocarbons under confinement were examined using DSC. 245,[253][254][255]257,260,261 DSC thermograms of octane and decane in controlled pore glasses (CPGs) with 4.3 nm of pores and the results showed two DSC peaks including a second boiling point, which was observed at a higher temperature than in the bulk fluid. 255 Two endothermic DSC peaks of decane in nanoporous monoliths have been reported.…”

“…257 The boiling points of hydrocarbon fluids in porous media including a tight chalk formation at elevated pressures were also recently reported. 261 While most of these studies were reported in the context of hydrocarbon recovery, anomalous phase transitions of emerging working fluids including CO 2 in multiphase environments need to be investigated.…”