Abstract A new approach is proposed for adjusting models of empirical equations to predict PVT properties based on current operating conditions of Colombian fields. The results obtained with this new approach are compared with existing correlations. Using PVT measurement properties from 51 Colombian fields distributed in eight producing oil basins (which represents more than 50% of total Colombian oil production), and through the application of multivariate statistical analysis and average relative error, a new approach was presented focused on two methodological criteria: i) PVT empirical correlations existing adjusted to the operating conditions of Colombian fields. ii) Proposal of empirical equations to estimate the bubble point pressure, oil volume factor and gas ratio in solution, of Colombians crudes. The inaccuracy of the empirical correlations of the fluids properties contained in the literature, to implemented for Colombian crude is manifested. Correction factors to adjust the experimental data are proposed to reduce the relative error percentage of correlations. A new empirical equation for estimating PVT properties is presented, necessary to solve reservoir engineering and surface production operational problems; by multivariate analysis. The proposed models are compared with the traditional ones, through relative errors based on the PVT measurement acquired, with the aim of ranking them according to its uncertainty. Through the correlations based on Colombian crudes presented hereby, PVT fluid properties are obtained exhibiting behaviors with a lower order error compared to currently implemented in the industry. This improvement in PVT calculation accuracy will be of invaluable support for simulations and designs applied in Colombian Oil industry.