scholarly journals Rheology of Diluted Heavy Crude Oil Saturated with Carbon Dioxide

2014 ◽  
Vol 29 (5) ◽  
pp. 2785-2789 ◽  
Author(s):  
Ruien Hu ◽  
John P. Crawshaw ◽  
J. P. Martin Trusler ◽  
Edo S. Boek
Keyword(s):  
Carbon Dioxide ◽  
Crude Oil ◽  
Heavy Crude Oil ◽  
Heavy Crude

A Single Pore Model for Displacement of Heavy Crude Oil With Carbon Dioxide

SPE Journal ◽  
2016 ◽  
Vol 21 (03) ◽  
pp. 0864-0872 ◽  
Author(s):  
Truynh Quoc Tran ◽  
Mohammed Almabrouk Ahmad ◽  
P.. Neogi ◽  
Baojun Bai
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Crude Oil ◽  
Oil Recovery ◽  
Numerical Solutions ◽  
Thin Liquid Film ◽  
Disjoining Pressure ◽  
Reverse Direction ◽  
Heavy Crude Oil ◽  
Heavy Crude

Summary The present problem analyzes displacement of heavy crude oil in a capillary by carbon dioxide (CO2) as seen in enhanced oil recovery (EOR). In immiscible displacement of viscous liquid in a tube by a gas with lower viscosity than the liquid, a gas bubble moves steadily and leaves behind a thin liquid film of thickness h∞ which is known as the Bretherton problem. With the recovery of crude oil in mind, the analysis was confined to cylindrical pores of diameter ≈1 µm, and hence disjoining pressures are included and added to the Laplace pressures. It is observed that, at small capillary numbers, the effect of disjoining pressure dominates, and at large capillary numbers, the Laplace pressure dominates. The key contribution here is the solutions to the mass-transfer problem in the form of CO2 dissolving in oil. We included the changes of the physical properties of heavy crude oil on carbonation on the basis of a real system. The thickness of thin residual oil film decreases in the presence of mass transfer, leading to an increase in oil recovery, but lowers the carbonation because of the convection in the reverse direction. The opposite is true of displacements at low capillary numbers in which the disjoining pressure dominates. The numerical solutions were obtained with ANSYS® FLUENT software for the profile shapes, capillary numbers, the thicknesses of thin oil films left behind, and the net mass-transfer rates. The capillary pressure dominates the net pressure drop that one can lower by lowering the surface tension.

Foamability of non-aqueous systems containing asphaltenes from a heavy crude oil

2021 ◽  
pp. 1-11
Author(s):  
Eliezer A. Reyes Molina ◽  
José G. Delgado-Linares ◽  
Antonio L. Cárdenas ◽  
Ana M. Forgiarini
Keyword(s):  
Crude Oil ◽  
Heavy Crude Oil ◽  
Aqueous Systems ◽  
Heavy Crude

scholarly journals Imidazole-based ionic liquids as rheological modifiers of heavy crude oil: An experimental and theoretical study

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035204
Author(s):  
Omar Martínez-Mora ◽  
Diana Campa-Guevara ◽  
Rocío Meza-Gordillo ◽  
Rodrigo Sánchez ◽  
Magali Salas-Reyes ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Crude Oil ◽  
Theoretical Study ◽  
Heavy Crude Oil ◽  
Heavy Crude

Heavy crude oil viscosity reduction and rheology for pipeline transportation

Fuel ◽  
2010 ◽  
Vol 89 (5) ◽  
pp. 1095-1100 ◽  
Author(s):  
Shadi W. Hasan ◽  
Mamdouh T. Ghannam ◽  
Nabil Esmail
Keyword(s):  
Crude Oil ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Pipeline Transportation ◽  
Oil Viscosity ◽  
Heavy Crude

Biodegradation of Heavy Crude Oil Using Persian Gulf Autochthonous Bacterium

2017 ◽  
Vol 11 (5-6) ◽  
pp. 667-675 ◽  
Author(s):  
Ali Parach ◽  
Alireza Rezvani ◽  
Mahnaz Mazaheri Assadi ◽  
Behrouz Akbari-Adergani
Keyword(s):  
Crude Oil ◽  
Persian Gulf ◽  
Heavy Crude Oil ◽  
Heavy Crude
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