PVTsim Nova 1.0 to 2.0

UPDATES AND BUG FIXES GENERAL PVTsim NOVA 2 VERSIONS 32 and 64 bit. FLUID MANAGEMENT DATABASE Disk size of fluid databases reduced significantly. FLUID EXPLORER Direct editing of fluid name in Fluid Explorer. FLUID INPUT More characters allowed in fluid ID fields. Sampling data can be input. HTGC n-paraffin analysis can be input and used …

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#3: Compositional Grading

Calsep recently got access to data for the compositional variation with depth in five North Sea reservoirs. All five reservoirs have a gas-oil contact in the interval fluid samples were taken. Figure 1 shows the variation in saturation pressure with depth in two of the reservoirs. The depths are relative to the depth of the …

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#2: How good are the predictions of sound velocity with an equation of state?

It was a major achievement when Peneloux et al in 1982 presented the method for volume correcting a cubic equation of state. It enabled liquid densities to be matched using a cubic equation, which was not possible with the equations in their original form. Prior to that time cubic equations had mainly been used to …

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#1: Huron-Vidal Mixing Rule. A Unique Combination of a Cubic Equation and a GE model

Cubic equations have been an industrial standard in oil industry since the nineteen eighties, but in the original form those equations are unable to handle the mutual solubility between hydrocarbons and aqueous components. Formation water is often produced together with petroleum reservoir fluids and hydrate inhibitors may have to be added to prevent hydrate formation …

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