A New Modified Compositional Viscosity Model for Medium-heavy Oils

作者：Raut B D; Patil S L; Dandekar A Y^*; Khataniar S

来源：Petroleum Science and Technology, 2013, 31(21): 2272-2279.

DOI：10.1080/10916466.2011.566033

• compositional viscosity modeling
• heavy oil
• medium-heavy oil
• tuning of EOS

Viscosity of heavy oils is a key parameter in designing potential enhanced oil recovery methods. The recently proposed semiempirical viscosity model by Lindeloff et al. (2004) was studied in depth. This model is the simplest yet powerful tool for medium-heavy oil viscosities. Based on the analysis, appropriate adjustments have been suggested, with the major one being the division of the pressure-viscosity profile into three different regions. New modifications have improved the overall fit, including the saturated viscosities at low pressures. The %AAD for the data sets studied was found to be 1.37. However, with the limited geographically diverse data, it is not possible to make a comprehensive predictive model. A few limitations of the new model are also stated.

• 出版日期2013-11-2