Abstract: While a condensate gas well produces, hydrate prediction or prevention is a complicated work relating to reservoir engineering, drilling and completion engineering, production engineering and surface construction engineering, among which large numbers of equations and variables must be considered simultaneously and normally attended one thing and lost another. The systematic decision-making method for hydrate prevention in condensate gas well is proposed in the light of reservoir management. And the hydrate management system model is developed by considering the coupling relationships within these aspects and displayed by the system state chart. In addition, examples of hydrate prevention in three different condensate gas well are presented for application, showing that this method can be used effectively for condensate gas reservoir management.

Key words: condensate gas reservoir, reservoir management, hydrate, system, EOS