AN INVESTIGATION ON HEAVY OIL VISCOSITY THROUGH VISCOMETER AND NUMERICAL CORRECTIONS

Heavy oil is a highly viscous crude oil which is difficult to recovery and contains a high amount of asphaltene and resins content. Excess of undesirable content in the crude oil increases the viscosity of crude oil. In this research article, heavy oil samples were collected in different oil fields and determined the viscosity. The viscosities of heavy oil samples were determined in the viscometer and the numerical corrections were examined for the fit in the heavy oil viscosity data. Applied dead oil viscosity correlations for the heavy oil samples widely diverged with the experimental values of redwood viscometer at 40 ˚C and 60 ˚C. In three of the four heavy oil samples showed an approximation in the viscosity value obtained by the experiment and correlation. Labedi was the only viscosity correlation that found to be near to the experimental value of redwood viscometer at 90 ˚C.