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International Journal of Thermophysics

, Volume 25, Issue 5, pp 1353–1366 | Cite as

Viscosity Modeling and Prediction of Reservoir Fluids: From Natural Gas to Heavy Oils

  • S. E. Quiñones-Cisneros
  • C. K. Zéberg-Mikkelsen
  • A. Baylaucq
  • C. Boned
Article

Abstract

Viscosity and density are key properties for the evaluation, simulation, and development of petroleum reservoirs. In previous work, the friction theory (f-theory) models have already been shown capable of providing simple but accurate viscosity modeling results of petroleum reservoir fluids with molar masses up to around 200 g · mol−1. As a base, the f-theory approach requires a compositional characterization procedure to be used in conjunction with a van der Waals type of equation of state (EOS). This is achieved using simple cubic EOS, which are widely used within the oil industry. In this work, the f-theory approach is further extended to the viscosity modeling of heavy reservoir fluids with viscosities up to thousands of mPa · s. Essential to the extended approach presented here is the achievement of accurate pvT results for the EOS characterized fluid. In particular, it has been found that for accurate viscosity modeling of heavy oils, a compressibility correction in the way the EOS is coupled to the viscosity model is required. With the approach presented in this work, the potential of the f-theory for viscosity modeling of reservoir fluids is extended to practically all kind of reservoir fluids, from light ones to heavy ones. Additionally, the approach has been completed with an accurate density modeling scheme.

Characterization Density Equation of state f-theory Modeling Petroleum Viscosity 

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Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • S. E. Quiñones-Cisneros
    • 1
  • C. K. Zéberg-Mikkelsen
    • 2
  • A. Baylaucq
    • 2
  • C. Boned
    • 2
  1. 1.Department of Chemical EngineeringTechnical University of DenmarkDKDenmark
  2. 2.Laboratoire des Fluides Complexes, Faculté des Sciences et TechniquesUniversité de Pau Avenue de l'UniversitéFrance

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