Inhibitors & Salts
When developing a hydrate remediation strategy an accurate knowledge of hydrate phase equilibrium in the presence of inhibitors is crucial to ensure hydrate formation is avoided for a system.
HydraFLASH can be used to model water-hydrocarbon systems in the presence of both salts and organic inhibitors. This can be with or without the presence of gas hydrates over a range of temperature and pressure conditions. The software also includes all of the common thermodynamic inhibitors and 19 salts with parameters available that can be used for modelling.
Salts
In a production scenario the aqueous phase of a produced fluid will typically already contain salts from either well completion fluids or formation water and these salts have an inhibiting effect on hydrate formation.
HydraFLASH can model the combined hydrate inhibiting effect of both salts and organic inhibitors.
Salting out
Salt precipitation in a system can give rise to potential plugging in the well bore, tubing and pipelines. The loss of salt from the aqueous phase can also reduce the hydrate prevention characteristics of the system.
HydraFLASH can model the maximum solubility of salts above which salt precipitation will occur. The calculation can be performed over a range of different temperatures, pressures and for a combination of salts and organic inhibitors.