Fluid Phase Behavior for Conventional and Unconventional Oil and Gas Reservoirs

3.4. Properties Estimation

In the absence of experimental data, the properties of the heavy fraction must be estimated. These properties are specific gravity, boiling point, molecular weight, critical properties, or even characterization factors such as the Watson factor. Several methods are available for calculating these properties. Some properties, such as the specific gravity, boiling point, and molecular weight, can be estimated from a generalized table. In addition, several correlations have been suggested by different authors to calculate these properties. In this section the most widely used correlations are reviewed. The units of temperature, pressure, and volume are K, MPa, and m³/kg mol, respectively. The specific gravity is calculated ...