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CT&F - Ciencia, Tecnología y Futuro
versión impresa ISSN 0122-5383versión On-line ISSN 2382-4581
Resumen
ESCOBAR, Juan y CORONADO, Carlos. DEVELOPMENT OF A SUPER ACCELERATED SUCCESSIVE SUBSTITUTION, NEW METHOD FOR SATURATION PRESSURE CALCULATION IN SYNTHETIC MIXTURES AND RESERVOIR FLUIDS. C.T.F Cienc. Tecnol. Futuro [online]. 2006, vol.3, n.2, pp.83-93. ISSN 0122-5383.
This paper explains a new method of Super-Accelerated Successive Substitution (SASS) for saturation pressure calculation, in multi-component mixtures of reservoir fluids and synthetic mixtures. The new iterative scheme is characterized by its speed and convergence, even in the critical region. It is easy to implement since it iterates on a single variable, the pressure. In order to demonstrate and to prove the applicability of the new method thirteen samples of fluids were chosen, covering mostly, the most common ranges composition - pressure - temperature (including the critical region) found in phase equilibrium problems in the petroleum industry. This SASS method was compared with other bubble point and dew point calculation methods; such as Conventional Successive Substitution (CSS) and Accelerated Successive Substitution (ASS), and it showed to be faster and more reliable.
Palabras clave : saturation pressure; reservoir fluid; equation of state.