Phase Behaviour And Physical Properties Of Lindbergh Heavy Oil/CO2 Mixtures

1990 ◽  
Vol 29 (06) ◽  
Author(s):  
S.G. Sayegh ◽  
D.N. Rao ◽  
S. Kokal ◽  
J. Najman
Keyword(s):  
Physical Properties ◽  
Heavy Oil ◽  
Phase Behaviour

Phase Behaviour and Physical Properties of Dimethyl Ether DME/CO2/Water/Heavy Oil Systems under Reservoir Conditions

2021 ◽  
Author(s):  
Desheng Huang ◽  
Yunlong Li ◽  
Daoyong Yang
Keyword(s):  
Physical Properties ◽  
Heavy Oil ◽  
Vapour Phase ◽  
Thermal Recovery ◽  
Phase Behaviour ◽  
Binary Interaction ◽  
Molar Ratio ◽  
Polar Components ◽  
Translation Strategy ◽  
Oil Mixtures

Abstract In this paper, techniques have been developed to quantify phase behaviour and physical properties including phase boundaries, swelling factors, and phase volumes for reservoir fluids containing polar components from both experimental and theoretical aspects. Experimentally, a total of five pressure-volume-temperature (PVT) experiments including three sets of DME/CO2/heavy oil systems and two sets of DME/CO2/water/heavy oil systems have been carried out to measure saturation pressures, phase volumes, and swelling factors by using a versatile PVT setup. Theoretically, the modified Peng-Robinson equation of state (PR EOS) incorporated with the Huron-Vidal mixing rule and the Péneloux volume-translation strategy is employed as the thermodynamic model to perform phase equilibrium calculations. It is observed that the experimentally measured saturation pressures of DME/CO2/water/heavy oil mixtures are higher than those of DME/CO2/heavy oil mixtures at the same temperature and same molar ratio of solvents and heavy oil, owing to the fact that more water molecules can be evaporated into vapour phase. The binary interaction parameters (BIPs) between DME/heavy oil and CO2/DME pair, which are obtained by matching the measured saturation pressures of DME/CO2/heavy oil mixtures, work well for DME/CO2/heavy oil mixtures in the presence and absence of water. In addition, a swelling effect of heavy oil can be enhanced by adding the DME and CO2 mixtures compared to only DME or CO2. The new model developed in this work is capable of accurately reproducing the experimentally measured multiphase boundaries, swelling factors, phase volumes with a root-mean-squared relative error (RMSRE) of 4.68%, 0.71%, and 9.35%, respectively, indicating that it can provide fundamental data for simulating, designing, and optimizing the hybrid solvent-thermal recovery processes for heavy oil reservoirs.

Phase Behavior and Physical Properties of Dimethyl Ether/Water/Heavy-Oil Systems Under Reservoir Conditions

SPE Journal ◽  
2021 ◽  
pp. 1-17
Author(s):  
Desheng Huang ◽  
Ruixue Li ◽  
Daoyong Yang
Keyword(s):  
Physical Properties ◽  
Phase Behavior ◽  
Dimethyl Ether ◽  
Heavy Oil ◽  
Partition Coefficients ◽  
Binary Interaction ◽  
Binary Interaction Parameter ◽  
Translation Strategy ◽  
Wide Range ◽  
Oil Mixtures

Summary Phase behavior and physical properties including saturation pressures, swelling factors (SFs), phase volumes, dimethyl ether (DME) partition coefficients, and DME solubility for heavy-oil mixtures containing polar substances have been experimentally and theoretically determined. Experimentally, novel phase behavior experiments of DME/water/heavy-oil mixtures spanning a wide range of pressures and temperatures have been conducted. More specifically, a total of five pressure/volume/temperature (PVT) experiments consisting of two tests of DME/heavy-oil mixtures and three tests of DME/water/heavy-oil mixtures have been performed to measure saturation pressures, phase volumes, and SFs. Theoretically, the modified Peng-Robinson equation of state (EOS) (PR EOS) together with the Huron-Vidal mixing rule, as well as the Péneloux et al. (1982)volume-translation strategy, is adopted to perform phase-equilibrium calculations. The binary-interaction parameter (BIP) between the DME/heavy-oil pair, which is obtained by matching the measured saturation pressures of DME/heavy-oil mixtures, works well for DME/heavy-oil mixtures in the presence and absence of water. The new model developed in this work is capable of accurately reproducing the experimentally measured multiphase boundaries, phase volumes, and SFs for the aforementioned mixtures with the root-mean-squared relative error (RMSRE) of 3.92, 9.40, and 0.92%, respectively, while it can also be used to determine DME partition coefficients and DME solubility for DME/water/heavy-oil systems.

A novel method (CCE&C) to study transient phase behaviour in heavy oil and ethane

Fuel ◽  
2019 ◽  
Vol 257 ◽  
pp. 115946
Author(s):  
J. Modaresghazani ◽  
R.G. Moore ◽  
S.A. Mehta ◽  
M. Anderson ◽  
A. Badamchi-Zadeh
Keyword(s):  
Heavy Oil ◽  
Phase Behaviour ◽  
Transient Phase ◽  
Novel Method

Correlation of chemical and physical properties of an Alaska heavy oil from the Ugnu formation

Fuel ◽  
2013 ◽  
Vol 103 ◽  
pp. 843-849 ◽  
Author(s):  
Kejing Li ◽  
Babajide A. Akeredolu ◽  
Andrew M. Renehan ◽  
Yuan Yang ◽  
Michael Batzle ◽  
...  
Keyword(s):  
Physical Properties ◽  
Heavy Oil

scholarly journals Intensification of Destruction Process of Sustained Emulsions Formed in Local Oil Sludge

2020 ◽  
Vol 9 (3) ◽  
pp. 1375-1378
Keyword(s):  
Physical Properties ◽  
Heavy Oil ◽  
Gas Condensate ◽  
Oil Sludge ◽  
Rheological Parameters ◽  
Destruction Process ◽  
Dispersed Systems ◽  
Oil Water ◽  
Newtonian Liquids ◽  
Water Ratio

Stable emulsions contained in oil sludge make it difficult to conduct. The physical properties of oil sludge usually vary widely and depend on the oil's own viscosity, temperature, oil-water ratio. Therefore, emulsions being dispersed systems under certain conditions have specific properties i.e. they are non-Newtonian liquids. Heavy oil and oil sludge are diluted with hydrocarbons, more often, gas condensate, which reduces the viscosity, density and other rheological parameters of high-sulfur oil.

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