Tartan grid parameters and their effect

Try various settings to get a feeling for the effect the different parameters have on the resulting tartan design. Be aware that the pattern may not be entirely as expected due to the combined effect of the settings on hydraulic fractures and XZ and YZ natural fractures.

If you change the tartan design with the parameters in the Tartan view, you do not change the underlying Fracture Definition. To update the Tartan view, click Update cell dimensions. If you, however, change a setting in the Fracture Definition form, for instance Min drainage surface area or Distance between stages, you change the fracture definition. Click Apply or OK to update the Tartan view.

The images below illustrate the effect of changing cell size parameters.

Original cell size parameters    click to enlarge

Grid with original cell size parameters    click to enlarge

Grid with cell size changed to 5 in direction perpendicular to fracture p    click to enlarge

Grid with cell size changed to 5 in direction parallel to fracture p    click to enlarge

The cell size parameters apply to all fractures: Hydraulic fractures and both XZ and YZ natural fractures (if activated). Perpendicular and parallel are relative to individual fracture systems. In the example below, a change in the perpendicular cell size setting affects the cell size around the hydraulic fractures in the E direction, around the YZ natural fractures in the N direction.

Original cell size parameters    click to enlarge

Grid with original cell size parameters    click to enlarge

Cell size changed to 5 in perpendicular direction. The cell size parameters apply to all fractures    click to enlarge

After you define your optimal tartan pattern, you can use it to create a tartan grid with the Create Tartan Grid form. The tartan grid stores the fracture definition and the cell size parameters internally.