| The objective of this study was to predict the extended composition of gas condensate fluid in order to enhance phase behavior prediction via equation of state. This research work introduces a systematic methodology to estimate the extended heptane plus composition by matching the mole fraction, the average molecular weight, the average specific gravity and the dew point pressure. For the extended method to be accepted, the averaging properties results should be within 3% of the lab results. A number of published compositional data have been used to verify the reliability of this methodology. Four different methods are compared and analyzed, and the methods that best suit for characterization of heptane plus are discussed.;Characterization of heptane plus prediction involves determining average molecular weight, specific gravity and the dew point pressure. The first two properties are calculated. The dew point is derived from a PC version of PR-AGA software which utilizes Peng-Robison equation of state. The results using all methods are compared and discussed. |
