Hydrate & PVT
The HydraFLASH model can perform a wide range of phase equilibria calculations in the presence and absence of hydrates for multicomponent, multiphase aqueous and hydrocarbon systems. The model has been tuned and validated against a full physical property database (literature and in-house) containing more than 170 oil and gas related components, alcohols, glycols and salts. HydraFLASH can also be used to model CO2- rich systems for CO2 transport and storage schemes.
PVT Calculations
The PT flash option automatically provides the number of existing phases and amounts of each phase including hydrocarbon, aqueous phases, solid salt phases, hydrates and ice.
The output properties from a flash include:
- Phase amounts, molecular weight and compositions
- Density, molar volume, fugacity and Z-factor
- Joule-Thomson coefficient and speed of sound
- Enthalpy, entropy, Cp and Cv
- Viscosity, thermal conductivity, and interfacial tension (IFT)
Hydrate Calculations
The HydraFLASH hydrate model can accurately predict the formation of hydrates and the inhibition effect and distribution of hydrate inhibitors in oil and gas systems. If the water contains salts, the influence of these salts on the hydrate formation conditions will also be taken into account.
HydraFLASH can accurately predict:
- The most stable type of hydrate formation structure ( I, II and H)
- If hydrates will form at a given temperature and pressure
- The minimum inhibitor injection rate to prevent hydrates as a function of the water cut
- The distribution of inhibitor in different phases
- Maximum water content permissible before hydrate formation
- The hydrate formation and inhibition effect of ethanol and i-, n-propanol