Ricardo Macías-Salinas1, Cecilia Durán-Valencia2, Simón López-Ramírez3, and Christian Bouchot1. (1) ESIQIE-Departamento de Ingeniería Química, Instituto Politécnico Nacional, UPALM, Av. IPN s/n, Col. Lindavista, México, D.F., 07738, Mexico, (2) Programa de Recuperación Mejorada de Hidrocarburos, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, México, D.F., 07730, Mexico, (3) Programa de Ingeniería Molecular, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, México, D.F., 07730, Mexico
The well-known absolute reaction rate theory of Eyring was successfully extended to the prediction of viscosity of “live” crude oils by previously tuning the viscosity model with viscosity measurements of the dead oil. Two simple equations of state (Soave or Peng-Robinson) were incorporated into the viscosity model to calculate all the thermodynamic properties required within the Eyring's modeling framework. Highly satisfactory representations of oil viscosities were achieved by using only a single tuning parameter valid over a wide pressure range.