Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Volume expansion prediction of supercritical CO 2 + crude oil

Han, H.[Haishui], Li, Z.[Zhuolin], Chen, X.[Xinglong], Li, S.[Shi], Qin, J.[Jishun]
Fluid Phase Equilib. 2017, 439, 9-17
ABSTRACT
On purpose of studying the regulations and prediction methods of volume expansion of CO2 + crude oil, eleven hydrocarbon components were selected to represent crude oil. Then, Constant Component Expansion (CCE) experiments were carried out with the hydrocarbon components and different molar fractions of CO2. According to the results, it was obviously that hydrocarbon components could expand the volume because of mixing the CO2. However, the expansion degree was largely influenced by the hydrocarbon properties. Therefore, a new parameter named the molar density was proposed to characterize these influences. The study found that hydrocarbon swelling factor and molar density were strict linear relationship. Based on this regulation and additional theoretical derivation, a prediction model was established to calculating volume expansion degree of CO2 + crude oil. With the experimental results of reservoir oil from CQ oilfield, it was turned out that the prediction model could successfully and precisely calculate crude oil swelling degree.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C6H14 hexane
3 C9H20 nonane
4 C12H26 dodecane
5 C14H30 tetradecane
6 C16H34 hexadecane
7 C6H6 benzene
8 C6H12 cyclohexane
9 C12H24 hexylcyclohexane
10 C9H18 1-cyclohexylpropane
11 C12H22 1,1'-bicyclohexyl
12 C12H16 cyclohexylbenzene
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 2
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 2
  • Molar volume, m3/mol ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Other PVT measurement
  • 9
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 3
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 4
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 5
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 6
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 6
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 7
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 7
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 8
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 8
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 9
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 9
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 10
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 10
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 11
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 11
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 12
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 1
  • POMD
  • 12
  • Amount density, mol/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Other PVT measurement
  • 4
  • POMD
  • 7
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 8
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 8
  • 1
  • Molar volume, m3/mol ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Other PVT measurement
  • 9
  • POMD
  • 8
  • 1
  • Molar volume, m3/mol ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Other PVT measurement
  • 9
  • POMD
  • 8
  • 1
  • Molar volume, m3/mol ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Other PVT measurement
  • 9
  • POMD
  • 2
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 3
  • POMD
  • 1
  • 10
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 10; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 1
  • 12
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 12; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 3
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 11
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 1
  • 9
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 9; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 4
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 1
  • 5
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 5; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12
  • POMD
  • 1
  • 6
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 6; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 12