Measurements and Modelling of Phase Behaviour and Viscosity of a Heavy Oil-Butane System

2007 ◽  
Author(s):  
A. Yazdani ◽  
B.B. Maini
Keyword(s):  
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.

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

Experimental research on phase behaviour and vapour/liquid equilibrium of N2 and heavy oil system

2018 ◽  
Vol 3 (2) ◽  
pp. 95
Author(s):  
Weiying Yao ◽  
Wei Wu ◽  
Changlin Shi ◽  
Shenglai Yang ◽  
Fangfang Li
Keyword(s):  
Experimental Research ◽  
Heavy Oil ◽  
Phase Behaviour ◽  
Liquid Equilibrium
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