Assigning data to a property definition

On the Assign Data form (prepare > Surfaces > Interpolate Property > Assign Data) you specify the input data to be used for interpolation. Input data can consist of multiple properties of different surface representations and events, and may come from different sources, i.e. the Imports folder, Data folder, Surface Sets, Seismic Interpretations, Marker Sets and Thickness Maps. A requirement is that input properties are continuous (not discrete) and of the same property type.

Important   Time-step properties or properties with realizations cannot be used as input. Also properties of surface representations in time domain cannot be used as input.

You can also use the option 'Without Input'. With this option you create a property not based on any input data but with constant value or interpolated with SGS(*), optionally with a trend. You would typically do this if you do not have input data yet, but want to set up the property definition already, e.g. a property map, to which you will add ('assign') the input data at a later stage.

(*) An SGS-modeled property is a property modeled with the stochastic modeling method Sequential Gaussian Simulation. For this, a variogram and standard deviation for variation amplitude need to be specified. For details, see Define Interpolation > SGS.

To assign the input data

  1. Open the Assign Data form.
  2. At the top of the form, under Property definition, select the property definition of interest.
  3. From the Property type drop-down list, select the property type you want to interpolate. The list of available property types depends on whether you select 'With Input' or 'Without Input':

    4. With Input - Select this option to create a property based on existing input data. Available property types are properties in your solution that meet the following criteria:

    • Only continuous properties (not discrete) and without realizations or time-steps.
    • Only properties of surface representations of the following event types: Horizon, Unconformity, Intrusion, Fluid contact, Property, Fracture, Microseismic, Map, Line, Undefined (you can verify the event type in the Property Inspector, under 'Surface type').
    • Only properties existing in one of the following folders: Imports folder, Data folder, Surface Sets, Seismic Interpretations, Marker Sets, Thickness Maps.
    • Properties of all surface representations (tri-mesh, 2D grid, polyline set, point set and marker) except tri-meshes with storage type 'triangle' (to verify this, see the Property Inspector of the tri-mesh, section 'Property > Storage type').

    After you have selected the property type in combination with 'With Input', continue reading under step 4 below.

    Without Input - Select this option to create a constant property or a property modeled with SGS. All continuous property types are available for selection. After you selected the property type in combination with 'Without Input', click OK at the base of the form. The application will skip 'Clean Up Data' and move directly to Define Interpolation where you can continue the workflow.

    The input table

  4. In the Input table you add the properties to be used as input. You can do this in two ways:
    • Via drag-and-drop from the JewelExplorer. Click on a property (or alternatively its corresponding representation or event) in the JewelExplorer and hold down the mouse while you 'drag' the object to the table, then release the mouse. Special note on thickness maps: to drag-and-drop input from a thickness map, you can only drag-and-drop the representation (i.e. 2D grid) or property, not the thickness map as a whole.
      • It depends on the object that you dragged-and-dropped (the property itself, the representation or the event) to what detail the columns get auto-selected. For example, if you drag-and-drop a property, all columns will be auto-selected with the corresponding data for that property. But if you drag-and-drop an event, and the event has multiple surface representations with properties of the selected type, you have to manually finalize the selections in the columns.
    • Click on the green plus icon () above the table. Each click adds a row to the table. When in a row, select your input from the respective drop-downs for the columns Source, Type, Event, surface representation (the checkbox) and Property.

    5. Columns in the Input table

    Source - Lists the available sources in your solution. The following sources are allowed: Imports folder, Data folder, Surface Sets, Seismic Interpretations, Marker Sets and Thickness Maps.

    Type - Lists the event types that are eligible for selection and which are present in the selected source. You can select from the following event types: Horizon, Unconformity, Intrusion, Fluid contact, Property, Fracture, Microseismic, Map, Line, Undefined.

    Event - Lists the events of the selected event type which are present in the selected source.

    Representation - Shows the representations that are present for the selected event: a white (enabled) checkbox means the representation is present for the selected event; a gray (disabled) checkbox means the representation does not exist for the selected event. When multiple representations exist for an event, only one representation can be selected per entry.

    Property - Lists all properties of the selected property type that exist for the selected event.

    Important   If you are using multiple events and/or multiple representations as input, avoid overlap of data (e.g. a marker and tri-mesh that both exist at the same XY location). In case of conflicting inputs, it cannot be predicted which data will be honored or ignored by the interpolation algorithm.
  5. When you have finished dragging/selecting your input data, click Apply to save the selection to the property definition and keep the form open, or click OK to save the selection to the property definition and move to the next workflow step, Clean Up Data.