Impact of produced water mineralization on the secondary treatment of hydrate development inhibitors
In the process of completion gas-condensate fields is observed an intensive increase of lifted out produced water and its mineralization influencing the process of regeneration of hydrate development inhibitors. The presence of mineral salts in the system of “hydrate development inhibitor – produced water” results in the decrease of saturated vapor pressure upon the solvent. The decrease of saturated vapors significantly influences the phase balance of the system. Moreover, the presence of salts changes the boiling temperature of water solutions of hydrate development inhibitors. This factor was not considered in the calculation and designing of existing regeneration set. The paper presents the data on the pressure of saturated vapor under the produced water with various mineralization based on which the correction coefficients were calculated and boiling temperature depending on the salt content specified as well.