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International Journal of Petroleum and Geoscience Engineering
IJPGE 2015, 3(2), 90-99
Effects of Increment or Decrement Operational Factors on Asphaltene Deposition in Shahid Mansoori Oilfield of Iran
Department of Chemical Engineering, Amirkabir University of Technology (Tehran polytechnic), Tehran, Iran
ABSTRACT
In this article, asphaltene precipitation models are described and in a case study the precipitated asphaltene is represented by an improved solid model. The main purpose of this study is to model and anticipate the effects of major parameters on formation of asphaltene precipitation and deposition at reservoir conditions, in order to provide a better understanding of the factors that may enhance asphaltene precipitation or deposition. The oil and gas phases are modelled with Peng-Robinson equation of state. The effect of several factors such as solid molar volume and injected solvent gas composition as well as thermodynamic condition variations (such as pressure and temperature) on the predictions made by this model will be investigated too. Eventually, about the experimental data that has been obtained from one of the oil wells located at the South Oil Zones of Iran’s oilfields, the accuracy of modelling and anticipating of asphaltene precipitation will be checked. All the related calculations have been done by Winprop software from CMG package.