Assigning faults

With the Assign Data form of the Fault Seal strip (model > Fault Seal > Zone to Zone Transmissibility Multipliers > Assign Data) you select the faults to which you want to assign fault transmissibility multipliers. Only faults that are part of a 3D grid model (this can also be a 3D grid that is upscaled for simulation) are eligible for selection. When you make your selection of faults, you have to group them into one or more fault sets. A fault set is a collections of faults with shared zone to zone fault transmissibility multipliers (Z2ZTM). Per fault set, the Z2ZTMs can be specified only once. When zone to zone transmissibility is constant across for example your reservoir, all faults can be grouped into one fault set. When you have varying zone-to-zone transmissibility across your reservoir, for example when there is lateral variation in the lithological characteristics of your zones, you would have to define multiple fault sets.

To create a fault set and assign faults

1. Open the Assign Data form and select the fault transmissibility model of interest from the Model drop-down list.
2. Under Grid, select the 3D Grid that contains the faults to which you want to assign fault transmissibility multipliers. Upon selection, the left table will be populated with all the faults in the selected 3D grid.
The grid can also be a 3D grid that was upscaled for reservoir simulation.
3. Create a fault set by clicking on the green plus icon at the top right of the table. On the Create New Fault Set dialog that opens, type the name of the fault set and click OK. The fault set is added to the right table.
4. Make sure the (new) fault set is selected to activate the blue 'right' arrow in the middle of the form. Then select the faults in the left table (press Ctrl to multiselect) and click the blue 'right' arrow between the two tables. Upon clicking the fault(s) are added to the fault set in the right table.
When a fault is added to a fault set, it is moved and not copied, as it cannot be assigned to multiple fault sets.
5. Optional: repeat the above steps (starting with step 3) if you want to create multiple fault sets due to varying zone to zone transmissibility across your reservoir.
To remove a fault from a fault set, select the fault in the right table and click the blue 'left' arrow. The fault will be moved back to the left table.
6. When you have finished creating the faults set(s) and assigned the faults, click OK to move to the next workflow step Zone to Zone TM or click Apply and keep the form open.

Table toolbar and functionality