Modeling of gas condensates properties using continuous distribution functions for the characterisation of the heavy fraction

摘要: The modeling of thermodynamic behaviour for gas condensates is not yet satisfactory and it involves an adjustment models. We propose here a fitting based on the characterisation plus fraction using three continuous distribution functions associated to following families: n -alkanes, -alkylbenzenes polyaromatics. No model used PVT calculations are made with PR-EOS. For polyaromatics, simple correlation T c , P w carbon number given. parameters distributions fitted in order improve accuracy constant composition liquid deposit curve calculation at reservoir temperature. Good results properties have been obtained 20 from different areas. Moreover, prediction tank heavy-plus densities given average deviations 1.2% 3.1%, respectively. Tests temperature extrapolation show that our yields good representation pressure influence condensate behaviour.