Pure Systems  
 H2   CO2    CH4    N2    H2
  HCl     Ar     H2   SO2   O2  
  Binary systems  
H2O-CO2 H2O-CH4 H2O-N2 H2O-H2S H2O-C2H6
H2O-NaCl H2O-CaCl2 H2O-MgCl2 H2O-LiCl H2O-KCl
  Ternary systems  
H2O-CO2-NaCl H2O-CH4-NaCl H2O-N2-NaCl H2O-H2S-NaCl H2O-C2H6-NaCl
  Multicomponent systems  
CO2-Seawater CH4-Seawater N2-Seawater H2S-Seawater C2H6-Seawater
CH4-Seawater-Porous Media H2O-CO2-NaCl-CaCO3