Training Image (TI) Library

The Training Image Library button (model > Facies > Tools) gives you access to a large collection of 2D and 3D training images (TIs). If the training image library is not installed yet, see Installing TI library for instructions. The majority of the training images are 3D and represent fluvial systems, ranging from straight to meandering to braided rivers. Four major facies associations are available (flood plain, channel, levee and splay) which are defined in the training images in different combinations, for example floodplain with channels, or floodplain with channels and levee, etc. You can use filters to further narrow down the selection, for example you can use a filter on channel thickness, sinuosity or levee size.

2D training images are also available (with laterally variable dimensions; thickness is 1 grid cell) including a reef environment, turbidite environment, fluvio-marine environment, carbonate karst environment and two fluvial environments; fluvial belt and fluvial belt with channel. The 2D TIs can be used for simulating 2D as well as 3D grids. The 2D training images can be recognized by the name 'Shape2D' (hover over the image to display the information).

Each TI can be fully or partly imported, by making an areal selection of the image on the screen. After import, the TI will appear in the JewelExplorer, under the 3D grids folder, after which it can be used for MPS modeling during the Assign TI step of the Facies Modeling workflow on the Facies strip.

To import a training image from the TI Library

1. In the Tools button group of the Facies sub-strip, click the TI Library button to open the Training Image Library. Upon opening, no filters are applied and all 681 TIs are displayed. To apply filters to narrow down your selection, see section Applying filters further below.
2. Select one or more TIs by clicking on the image(s). A green check mark appears for each selected TI.
Hovering over a TI shows the legend. For 3D training images, you can subsequently access more information by clicking More Info on the legend.
3. Optional. You can import a sub-set of a TI by defining the sub-area manually on the screen. Make sure the TI is selected, then define the area by drawing a red rectangle on the training image. To undo the sub-set selection (i.e. clear the rectangle), right-mouse click on the TI and select Clear selection.
Important   If the following minimum requirements are not met, sampling of the training image is not possible and you cannot use MPS as a modeling method:
• Minimum requirements for a 3D training image: 25 x 25 x 14 cells (in I, J and K direction).
• Minimum requirements for a 2D training image: 25 x 25 cells (in I and J direction).
When importing multiple TIs at the same time, they need to have identical dimensions (i.e. 2D and 3D TIs cannot be imported simultaneously, also, when defining a sub-area, it will be applied to all selected TIs).
4. Click Import at the base of the screen to import the TI(s). The TI(s) will appear in the 3D grids folder in the JewelExplorer.

Example of a 3D training image (left) and 2D training image (right) in the TI Library. After you have selected a TI (indicated by the green check mark) you can define a sub-area by drawing a rectangle on the screen (see upper left image). Hovering over an image will display the legend, on which you can click More info to access background information of the relevant TI    click to enlarge

Applying filters

You can apply the following filters to the Training Image Library: