Assigning surfaces to a surface set

You can add surfaces with various geometric representations to a surface set using the Assign Data form (prepare > Surfaces > Assign Data). The surfaces can be faults, horizons, unconformities and intrusions, and their geometric representations can be polylines, 2D grids, tri-meshes or point sets. You can mix and match from various data sources in the JewelExplorer (i.e. data, Seismic Interpretation or another surface set) to create one consistent set of surfaces for later use in the modeling workflows. It depends on the purpose of the surface set which type of geometric representation(s) the surface set should contain.

Assign data to a surface set

  1. From the Surface set drop-down list at the top of the form, select the surface set you want to add surfaces to.
  2. The Source drop-down list controls the surfaces that you may select from when creating the surface set. The source can be any model, seismic interpretation or other surface set, you can select the Imports option to select any surface from the Imports folder in the JewelExplorer, or you can select the Data option to select any surface from the Data folder in the JewelExplorer. Select the source that contains the surfaces you want to assign. This selection will populate the table below with all surfaces from the selected source.
  3. In the left table, select the surfaces you want to assign to your surface set by checking the checkbox. In the Assign column you can choose to assign either all geometric representations of the selected surfaces, or a specific representation only. See The Source and Surface Set tables below for more information on the tables.
    4. If you assigned faults, unconformities or intrusions to a surface set that you want to assign to a fault model (model > Faults > Assign Data) in a later stage, make sure they have a tri-mesh representation in your surface set, because only triangulated surfaces within a surface set can be assigned to a fault model. Use the 2D Grid Tools or Polyline Set Tools button groups on the Surfaces strip to create the required tri-meshes.

  4. With the surfaces and representations selected, click on the arrow between the two tables to copy surfaces from the left table to the right table. This does not mean that the surfaces are assigned to the surface set yet; the surfaces will only be assigned once the Apply or OK button is clicked. For now, the surfaces will appear with a light green background, indicating that their assignment to the surface set is pending. Surfaces that are already assigned to the surface set will appear with a normal/white background.

    If you attempt to assign a surface that already belongs to the surface set, if you want to update surface data, for example, a prompt will appear notifying you that the representations for the particular surface will be overwritten. If you choose to continue, surfaces that have a pending overwrite appear in light blue in the right table, and the data will be overwritten once Apply or OK is clicked.
  5. If you want to remove surfaces from the surface set, select the surfaces in this list and click the Unassign Selection button, or press Delete on your keyboard. If the surface was pending assignment, it will simply be removed from the right table. If the surface had already been assigned, the background color will turn red to indicate that the surface will be removed from the interpretation the next the Apply or OK button is clicked.
  6. Click OK to assign the surfaces to the surface set and close the form, or click Apply to assign the surfaces to the surface set and keep the form open for additional work. When a surface is assigned to the surface set, a check mark will appear in the Present column. You can always add other geometric representations of the same event in a later stage.

The Source and Surface Set tables

Source table

The Source table lists all of the surfaces available from a particular source selected in the adjacent drop-down list. The source of the surfaces in this table can be another surface set, a seismic interpretation, or any of the available models in the solution. The Source table includes the following columns and options:

Checkbox  Check the box for each of the surfaces you want to assign to the surface set selected in the drop-down list at the top of the form. Once you have checked a box in the Source table, the arrow between the Source table and Surface Set table will activate. Click the arrow to copy the surface to the surface set. Note that surfaces are not assigned until the Apply or OK button at the bottom of the form is clicked.

Name  The name of the surface (read-only).

Type  The geological type that was assigned to the surface during import or via the Inspector pane.

  A visual indicator of which representations are available for the surface. For example, if the icon is shown it means that a polyline set representation is available.

Assign  Allows you to select which representation(s) of the surface will be copied to the surface set.

Present  A check in this column indicates that an interpretation of the surface has already been assigned to the surface set.

Surface Set table

Name  The name of the surface (read-only).

Type   The geological type that was assigned to the surface during import or via the Inspector pane.

  A visual indicator of which representations are assigned to the surface set. For example, if the icon is present for a surface in the column, this indicates that the polyline set representation for the surface has been assigned to the surface set.

In addition to the data contained in the columns, the Surface Set table also utilizes colored backgrounds to indicate various administrative states of the surfaces:

  • A light green background indicates that a surface is pending assignment to the surface set. Click Apply or OK to assign the surface.
  • A light red background indicates that an already assigned surface has been selected for removal. Click Apply or OK to remove the surface from the surface set.
  • A light blue background indicates that the surface will be overwritten the next time the Apply or OK button is clicked. All representations associated with the particular surface are overwritten in this instance and replaced with the selection made in the Assign column of the Source table.

Assigned surfaces in the JewelExplorer

Upon assignment of the input data, under the active Surface Set, the assigned surfaces are directly available and visible in the JewelExplorer.