The Modelling bar provides tools for creating maps, building fault frameworks, and generating structural models from interpreted seismic and geological data.

The bar consists of the following sections: Interpolation, Map calculator, Fault Modeling and Structural Modeling.

Interpolation

Defines the interpolation settings used for map generation. The available parameters are:

• Interpolation type — the algorithm used to build the map. The available methods are ABOS, Kriging and Adaptive Snap.
• Step X / Step Y — the grid cell size of the resulting map.
• Use internal points / Use polygons — control whether internal control points and bounding polygons are taken into account during interpolation.
• Fault clear radius, Taper size, Smooth aperture — fine-tune how the map is shaped around faults and how strongly it is smoothed.

Set the interpolation type, grid steps, internal-point and polygon options, fault clear radius, taper size, and smooth aperture directly in the bar. Click Settings in the Map calculator group to open the interpolation settings, where you can choose Fault handling and configure method-specific options. The full set is also available from the Module Properties panel.

Adaptive Snap

Adaptive Snap is a convergent, coarse-to-fine interpolation method. It builds the map from the input data over successive refinement levels and snaps the final surface onto the input control points, so the resulting map honours the picked data. Mixed input data (points and interpreted horizons) can be used together as control data, and faults can be applied as constraints to preserve structural discontinuities.

When Adaptive Snap is selected, the following additional parameters are available on the Adaptive Snap tab of the interpolation settings dialog:

• Fault handling mode — controls how faults constrain the interpolation. The options are Ignore (the map is continuous across faults), Barrier (faults block the exchange of values between their two sides, preserving discontinuities) and Final refinement only (faults are ignored during the early levels to keep the regional trend and applied only in the final pass to introduce local discontinuities).
• Refinement levels — the number of coarse-to-fine passes used to build the surface (default 5).
• Smoothing iterations per level — the number of smoothing passes applied at each refinement level (default 10).

For more information about map building please refer to Map creating.

Map calculator

Performs arithmetic and logical operations on maps (depth maps, velocity maps, and others) to create new calculated map outputs based on user-defined expressions.

The group contains Settings, Open map calculator, Calculate isopach, and Residual calculation.

Open map interpolation settings

Open map calculator

Fault Modeling

Builds a fault framework from interpreted fault data to support structural analysis and geological model construction.

Structural Modeling

Creates a structural model using horizons, faults, and maps to represent the main geological framework of the reservoir. See Structural modeling and Geological modeling for the full workflow.

See Also

Map creating

Structural modeling

Ribbon bar