Abstract

ABSTRACTIn petroleum engineering hydrate is referred to as crystalline and snow like compounds Which consists of the capture of gaseous molecules among water molecules. The primary requirement for the prevention of hydrate is to recognize the conditions for its formation. Hydrate formation conditions include the presence of water, small gas molecules and the appropriate conditions of temperature and pressure. Several models have been proposed to determine the hydration pressure and temperature. Van der waals-platteeuw is a model base on statistical thermodynamics. In this model, the determinant is the fugacity of the gas phase. In this paper, the fugacity is obtained with different equations of state and replaced by the pattern provided by Parish and Prasnitz, to obtain the pressure and temperature of hydrate formation. In the end, results are compared with laboratory data and results from the CSMHyd Software and the experimental data to Check the accuracy of the model.

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