The 2018.4 version of DeepSim is out! Like the previous version, we have continued to focus on creating custom PVT components. For those not familar with DeepSim and/or compositional simulation, a compositional reservoir simulator (like DeepSim) models the properties of oil and gas using physical components. The behavior of oil and gas in the simulation is a consequence of the properties and the composition of the oil and gas in any given grid block. This is different from a black-oil type simulator, where high level oil and gas properties are summarized in tables.
DeepSim version 2018.3 introduced the ability to create custom components. To create a custom component the user needs to supply all sorts of parameters. One of the more difficult parameters would be the parameters for the component k-value correlation. The k-values correlations determine how a component split between the various phases (oil/gas/water), see this Wikipedia page for some background reading. K-value parameters are very difficult to calculate, and errors can quickly lead to non-physical behavior.
Main new feature in the 2018.4 version is the ability to create k-value correlations directly from EOS parameters. To calculate to k-values from an EOS, simply press the new button at the bottom of the gas k-values input tab (see screenshot below). This makes it far easier to create a set of consistent k-value parameters! If you want to fine-tune the vapor-liquid equilibrium behavior, you still have the option of overwriting the calculated results with your own values.
If you have already installed DeepSim on your device, the new version should automatically be installed via the Google Play-Store. If you haven’t and would like to give DeepSim a try, DeepSim can be obtained via this link (Google Play Store).