Drawdown

Using an equation of state to predict the effects of producution decline on a reservoir composition.  Also, examining the importance of compositional complexity.

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Setup

Note:  this is the path to the installed EOS packages

Last Run on:

The Drawdown experiment

Define a drawdown function that simulates the production of a reservior which results in  lowering of pressure.  The object is twofold:  
1:  to see how density and GOR vary during production, and
2:  to see how the specification of the mixture (i.e., how many pseudo-components used) affects the prediction

Predictions using all components

Flash the mixture at repeatedly lower-pressures

Examine density

2) predicting using a C15+drawdown

The Function used to produce the compositions is derived here.

Examine density

3) predicting using a C7+drawdown
Method

The Function used to produce the compositions is derived here.

Examine density

Compare the plots

Compare GOR

Compare vapor densities