lithologic realization
The lithologic realization module is one of three similar modules (the other two are analytical realization and stratigraphic realization), which allows you to very quickly generate statistical realizations of your 2D and 3D lithologic models based upon C Tech’s Proprietary Extended Gaussian Geostatistical Simulation (GGS), which we refer to as Fast Geostatistical Realizations^®^ or FGR^®^. Our extensions to GGS allow you to:
- Create realizations rapidly
- Lithologic realizations are the slowest of the three because the material probabilities must be additionally processed to assign materials
- Exercise greater control over the frequency and magnitude of visual noise typical of GGS
- Control deviation magnitudes from the nominal kriged probability prediction based on a Min Max Confidence Equivalent
- Deviations are the absolute value of the changes to each material’s probability
- Apply Simple or Advanced Anisotropy control over 2D or 3D wavelengths
Ports
| Direction | Name | Type | Description |
|---|---|---|---|
| Input | Indicator Grid Data | Realization | Information required for direct exporting of indicator grid data. |
| Output | Output Field | Field | The main output field representing geologic materials. |
| Output | Deviations Field | Field | A field containing deviation values by which the data has been shifted. |
| Output | Output Object | Renderable | A renderable object displaying the variography created by the module. Output even when Allow Run is off. |
Properties
| Property | Type | Description |
|---|---|---|
| Allow Run | Boolean | Controls whether the module will run when applications are loaded or data changes. When on, the module runs when applications are loaded or the Execute button is pushed. When off, the module will not run unless Execute is pressed. |
| Execute | Button | Forces the module to run. If pressed and the application saved, it will cause the module to run when the application is loaded. |
Fast Geostatistical Realization
| Property | Type | Description |
|---|---|---|
| Randomness Generator Type | Choice: Type1, Type2, Type3, Type4 | Determines the nature of the Realization deviation patterns. |
| Anisotropy | Anisotropy | Controls the anisotropy of the realization noise via heading, dip, roll, and axis ratios. |
| Seed | Integer | Used in the random number generator to make realizations reproducible. |
| Wavelength | Double | Affects the Randomness Generator. This value is in your coordinate system units. Small values produce an output with higher frequency changes. |
| Min Max Confidence Equivalent | Double | Realization deviations from the nominal kriged results will be constrained to lie within the equivalent Min/Max (plume) bounds. Must lie between 51.00% and 99.995%. Theoretically 50% is the same as the nominal kriged result. |
Data To Export
| Property | Type | Description |
|---|---|---|
| Geologic Nodal Data | Multi-select: Layer Thickness, Depth, Elevation | Selects which data components to generate for the output field on a node by node basis. |
| Geologic Cell Data | Multi-select: Material ID, Geo Layer | Selects which data components to generate for the output field on a cell by cell basis. |
| Probability | Boolean | Exports a data value that describes the probability of that cell or node being the chosen material. |
| Probabilities By Material | Boolean | Exports a data value that describes the probability of that cell or node being each of the different materials. |
Variography Display
| Property | Type | Description |
|---|---|---|
| Variography Z Scale | Double | The vertical exaggeration to be applied to the output variography ellipsoid and lines. |
| Display Variogram Ellipsoid | Boolean | Allows the user to display the variography ellipsoid. |
| Ellipsoid Opacity | Double | Sets the opacity of the ellipsoid directly. |
| Resolution | Integer | The resolution to use for the ellipsoid. Larger numbers create more detailed representations. |
| Ellipsoid Scale | Double | Scales the ellipsoid equally along each axis. |
| X Offset | Double | Translates the ellipsoid along the x axis. |
| Y Offset | Double | Translates the ellipsoid along the y axis. |
| Z Offset | Double | Translates the ellipsoid along the z axis. |
| Ellipsoid Color | Color | The ellipsoid is a solid color which can be selected using this control. |
| Display Variogram Lines | Boolean | Allows the user to display lines aligned with the variography ellipsoid. |
| Line Scale | Double | A scalar that sets the length of the variogram lines relative to the scale of the ellipsoid. |
| Primary Ratio Color | Color | The primary ratio axis color. |
| Secondary Ratio Color | Color | The secondary ratio axis color. |
| Tertiary Axis Color | Color | The tertiary axis color. |