8.5.1 Define Fluid Contents

The fluid replacement algorithm in SynthRock is based on Gassmann's equation. Prior to any simulation, fluid possibly present can be specified in the Contents Manager.

In the Profile module, the hydrocarbon column has to be defined by particular thickness relative to a well marker(s). This is done by clicking on the bottom right icon, in the layer modeling window of the Profile module.Then a number of fluid contents, relative to various markers, can be defined in clicking on Define: below any individual marker, multiple fluid columns (e.g. oil column, gas column) of (possibly) different thickness can be specified.

Optionally, the user can choose to limit the HC column down to another marker, below the original marker relative to which the HC column is defined. Pressing Ok will set-up the HC content.

The gas column of the above example can be visualized by zooming in at the appropriate level and specifying Gas as fluid content, in the bottom part of the main layer modeling window. It appears as a rectangle made of red colored lines (see below). The Outline color and/or the Pattern of the fluid visualization can be changed under Manage Contents by clicking on the in the Manage Stratigraphy window.

In the Stochastic or Basic Layer modeling, the fluid column has to be defined in the model building itself. The display is done in the same way as in the Profile mode.