Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Influence of Compressed Carbon Dioxide on the Capillarity of the Gas-Crude Oil-Reservoir Water System

Jaeger, Philip T., Alotaibi, Mohammed B., Nasr-El-Din, Hisham A.
J. Chem. Eng. Data 2010, 55, 11, 5246-5251
ABSTRACT
The application of carbon dioxide is becoming increasingly important for enhanced oil recovery (EOR) processes. In view of combined EOR and carbon dioxide capture and storage technologies (CCS), knowledge must be gained on relevant properties of the participating fluid mixts. The soly. of carbon dioxide is significant in many hydrocarbon materials, which affects the capillarity and migration of fluids in oil reservoirs via the interfacial tension (IFT) and wetting of the rock surfaces. For EOR the capillarity is decisive in view of the pressure that has to be overcome within the rock pores. The present study is dedicated to a thorough exptl. description of a gas-crude oil-reservoir water system and its behavior under CO2 pressure including oil d. and interfacial properties. The exptl. results of decreasing IFT in a three-phase system, increasing d. and diminishing wettability, show an important influence of the presence of carbon dioxide.
Compounds
# Formula Name
1 N2 nitrogen
2 CH4 methane
3 CO2 carbon dioxide
4 C7H16 heptane
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
  • 1
  • 4
  • Interfacial tension, N/m ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Fluid (supercritical or subcritical phases)
  • Drop weight
  • 4
  • POMD
  • 2
  • 4
  • Interfacial tension, N/m ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Fluid (supercritical or subcritical phases)
  • Drop weight
  • 9
  • POMD
  • 3
  • 4
  • Interfacial tension, N/m ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Fluid (supercritical or subcritical phases)
  • Drop weight
  • 14