![]() The correlation here presented gives better results than those of Riazi-Daubert's correlation and also gives excellent liquid density predictions when there are high MW hydrocarbons present in the fluid. Twenty (20) PVT laboratory tests made in black oil fluid samples taken from fields of the Neuquén Basin (Argentina) were utilized for the adjustment of the bubble point (Pb), gas-oil ratio (GOR), constant composition expansion pressure-volume relation (PV) and differential expansion curves (Rs, Bo and ρo) of the compositional simulator.Ī comparative study was performed against the Riazi-Daubert's 2 correlation. Shows Least Common Multiple and Greatest Common Divisor. The correlation is a function of the fraction's molecular weight (MW). How do i get google Calculator results in fraction form Math calculator to add, subract, multiply, divide and simplify fractions. This work presents a correlation for the critical properties of the plus-fraction C 7+ needed in the characterization of crude oil fluid samples for a compositional simulator using Peng-Robinson's 1 EOS. There arises the need of adequately characterizing these undefined plus fractions in terms of their critical properties. These heavy fractions are lumped and called the "plus-fraction" (C 7+). These properties are well known for pure compounds (like methane, ethane, etc.), but nearly all naturally occurring gas and crude oil fluids contain some heavy fractions that are not well defined. In a hydrocarbon mixture, the critical properties (critical pressure " P c", critical temperature " T c" and accentric factor " ω") must be given for each component. A compositional simulator uses an Equation of State (EOS) to predict the pressure-volume-temperature (PVT) behavior of gas and crude oil fluids, which are very complex hydrocarbon mixtures. ![]()
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