Assigning data to a simulation concept

Important  You can use a simulation concept as direct input to a simulation case. This way you propagate the information of the domain models (e.g., porosity model, fluid model) to the simulation case which ensures that models are geologically consistent and model dependencies are retained.

After you have created a simulation concept with the previous step of the workflow, you select the 3D grid and the reservoir properties to be included in your dynamic simulation on the Assign Data form (concept > Concepts > Simulation Concept > Assign Data) . Any uncertainties assigned to the porosity and permeability domain models can be propagated to the simulation via a simulation study where you can select them individually.

The Assign Data form will make a dependency check on the selected models and 3D grid properties and will give a warning if you have selected an inconsistent set of models and 3D grid properties.

To assign data

  1. Open the Assign Data form.

  2. Under Simulation concept, select the simulation concept to which you want to assign the data.

    3. Input section

  3. Under Source, you select how you want to assign the 3D grid to be used in your simulation. There are two options:

    • 3D Grid  When you select this option, you can directly select a 3D grid of your choice, without the need of a volumetric concept. After you selected this option, proceed with step 5 below.
    • Volumetric Concept  You can use this option if you already set up a volumetric concept and optionally even ran a volumetric uncertainty study based on it. In case you want to use the same set of domain models for your simulation, you can select the volumetric concept here. After you selected this option, proceed with step 4 below.
    When you have multiple volumetric concepts within one volumetric scenario, each volumetric concept will be listed individually in the Volumetric concept drop-down where you select one. The reason is that the dynamic simulation can only handle one volumetric concept at a time (not multiple).
  4. Volumetric concept  (In case you selected '3D Grid' in step 3, this field is disabled) Select the volumetric concept of interest.
  5. 3D grid  (In case you selected 'Volumetric Concept' in step 3, this field is disabled and shows the 3D grid which is assigned to your Volumetric Concept) Select your 3D grid from the drop-down list. All 3D grids in your solution which are of geometric type JewelGrid, Regular Pillar or Tartan, are available for selection.
  6. Porosity system  Select the porosity system to be used in the reservoir simulation. Three options are available:
    • Single porosity
    • Dual porosity (DUALPOR)
    • Dual permeability (DUALPERM)
  7. Fluid model  (In case you selected 'Volumetric Concept' in step 3, this field is disabled and shows the Fluid Model which is assigned to your Volumetric concept) You can propagate fluid model data to your simulation case but at this stage, not use any defined fluid model uncertainties in the dynamic simulation. In order to be able to select a fluid model, you need to have performed the following steps:

    1. You must have selected 'Enable fluid model as simulation input' on the Fluid Levels form (model > Fluids > Fluid Levels) after which you must have selected the Initialization Region IDs (via the same form) and the PVT region IDs on the Fluid Properties form. For details, see Fluid levels and Fluid properties.
    2. Next you must have mapped the Initialization Region IDs and PVT Region IDs to your 3D grid with the Fluid Model Grid Properties tool (model > Fluids > Tools > Output Tools > Fluid Model Grid Properties). This must have generated the 'Initialization Regions' and 'PVT Regions' properties as properties of your 3D grid in the JewelExplorer.

    3D Grid Properties table

    In the 3D Grid Properties table, you select the properties that you want to use for your reservoir simulation. If you select an inconsistent set of models and 3D grid properties you will get a warning. The Reservoir Property column is auto-populated with the property type of the properties you need to select. The property types listed in the table depend on the selection you made on the form (e.g., the porosity system you selected, whether you selected a fluid model or not). Some properties in the 3D Grid Property column are auto-populated.

  8. For each row in the column, select the 3D grid property to be used in the simulation. The icons that are used in front of the properties indicate if the property is a model (e.g., Porosity Model), the result of a property modeling workflow, based on a function, or created with a tool.
    • If a grid property is created (and associated) with a model in a modeling workflow, these are the symbols: Porosity , Permeability .
    • If the grid property is created with a property calculator model, this is the symbol: .
    • If a grid property is not created via a model (but for example via mapping to the grid), this is the symbol: .
  9. After you have selected a property for each property type listed in the table, click Apply or OK at the base of the form. You can review the data that will be carried forward in the simulation in the corresponding simulation case. For how to do this, see 'To QC the properties in your simulation case' below.

To QC the properties in your simulation case

You can review the properties, which you selected on the Assign Data form of the Simulation Concept workflow, in your simulation case. To do this:

  1. Go the simulate strip and open the IMEX, GEM or STARTS sub-strip (depending on the simulator you are using).

  2. Open the Create Case form. Make sure that the correct simulation concept is selected from the Simulation concept drop-down list and click Apply or OK at the base of the form. This will 'trigger' the concept data in the simulation case.

  3. Open the Reservoir Description form and click Edit reservoir to open the Reservoir Description view. On the Reservoir Properties tab, verify that porosity and permeability is auto-populated, and in case you also assigned a fluid model to your simulation concept, that the 'PVT Regions' and the 'Initialization Regions' are auto-populated as well.

  4. Open the PVT form and verify that the 'PVT Region IDs' are auto-populated.

  5. Open the Initialization form and click Edit region(s) and verify that the 'Initialization Region IDs', reference pressure, reference depth and fluid level depths are auto-populated. See Initialization view IMEX™, Initialization view GEM™, or Initialization view STARS™, depending on the simulator you are using.