Creating a 3D structure

After you have created a fault model you are ready to integrate it with the surfaces from your seismic interpretation or surface sets to create a 3D structural model. The result will serve as a basis for the fluid model and 3D grid that you will populate with reservoir properties in a later stage, which can be used for both volumetric assessment and reservoir simulation.

With the Structural Modeling workflow you follow a step-by-step method to build the structure, resolve any inconsistencies in the model and to create a clean and watertight structural framework. Under rare circumstances artifacts may appear in the resulting surfaces or the (optional) QC grid. For a section on how to troubleshoot these issues, see, Troubleshooting artifacts in 3D grids and constructed surfaces.

To calculate the final horizon-fault intersections for QC and mapping purposes, use the Create Fault Traces form in the Tools button-group of the strip.

Via a separate workflow, called 'Depth and Thickness Uncertainty', you can assign implicit uncertainty to your structural model. Via this workflow you can investigate how uncertainty of surface depth and interval (zone) thickness impacts your volumetric results.