Experimental Determination of Interfacial Tension and Miscibility of the CO2–Crude Oil System; Temperature, Pressure, and Composition Effects

2013 ◽  
Vol 59 (1) ◽  
pp. 61-69 ◽  
Author(s):  
Abdolhossein Hemmati-Sarapardeh ◽  
Shahab Ayatollahi ◽  
Mohammad-Hossein Ghazanfari ◽  
Mohsen Masihi
Keyword(s):  
Interfacial Tension ◽  
Crude Oil ◽  
Experimental Determination ◽  
Composition Effects ◽  
System Temperature

Experimental Determination of Equilibrium Interfacial Tension for Nitrogen-Crude Oil during the Gas Injection Process: The Role of Temperature, Pressure, and Composition

2014 ◽  
Vol 59 (11) ◽  
pp. 3461-3469 ◽  
Author(s):  
Abdolhossein Hemmati-Sarapardeh ◽  
Shahab Ayatollahi ◽  
Ali Zolghadr ◽  
Mohammad-Hossein Ghazanfari ◽  
Mohsen Masihi
Keyword(s):  
Interfacial Tension ◽  
Crude Oil ◽  
Experimental Determination ◽  
Gas Injection ◽  
Injection Process

scholarly journals The influence of the solveny medium on the aggregation of asphaltene macromolecules and determination of their molar mass

2008 ◽  
Vol 2 (2) ◽  
pp. 91-97
Author(s):  
Antonieta Middea ◽  
◽  
Marisa Bezerra de Mello Monte ◽  
Elizabete Fernandes Lucas ◽  
◽  
...  
Keyword(s):  
Critical Micelle Concentration ◽  
Interfacial Tension ◽  
Crude Oil ◽  
Kinematic Viscosity ◽  
Molar Mass ◽  
Solubility Parameters ◽  
Organic Solutions

The formation of aggregates of a fraction of asphaltenes extracted from Brazilian crude oil was investigated by measuring the interfacial tension and kinematic viscosity of their solutions prepared in different solvents. The interfacial tension results indicate the existence of critical micelle concentration (CMC) levels of the asphaltenes in solvents with solubility parameters sufficiently different from those of the asphaltene tested. The kinematic viscosity measures revealed the formation of aggregates at concentrations above the CMC. The interfacial tension measures of asphaltenes in organic solutions, although infrequently mentioned in the literature, were used to calculate the molar mass, permitting the comparison of various molar masses attributed to the asphaltenes in the form of aggregates.

Experimental determination of a state equation for dissipative granular gases

1999 ◽  
Vol 96 (6) ◽  
pp. 1111-1116 ◽  
Author(s):  
E. Falcon ◽  
S. Fauve ◽  
C. Laroche
Keyword(s):  
Experimental Determination ◽  
State Equation ◽  
Granular Gases
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