In Basic project mode, both the
NTG Discretisation and the
FSP units options are currently inoperative (greyed-out).
The
NTG Discretisation functionality will be implemented sometime in the future to select where shale is positioned within cells.
The
FSP units control is automatically locked to FSPs in metric "on" in Basic project mode, so the
TGMETRIC keyword (new to TransGen 3) is automatically added to the TGDATA run file. With the
TGMETRIC keyword included (
i.e. activated), fault displacement, fault rock thickness and all calculated Fault Seal Potential measures are reported (both graphically & in output files) and stored internally within TransGen using metres as the unit of length, regardless of the current
Units setting (
Metric,
Field or
Lab) on the
Coordinate System page.
Lower limits
Unfaulted transmissibility cutoff:- sets a minimum unfaulted transmissibility any connection must have to be output. It defines the TGMINTR keyword in the TGDATA run file and follows the default value used in Eclipse for this property. This cutoff is provided to allow TransGen to match Eclipse behaviour and should only be changed in exceptional circumstances to mirror changes in the parent simulator run file.
Cell volume error tolerance:- this cutoff is used by TransGen as a precision limit for rejecting badly constructed cells and defines the TGVOLERR keyword in the TGDATA run file. It is different from the Eclipse limit of minimum cell pore volumes (Eclipse MINPV keyword) which TransGen also recognises. A cell is flagged as inactive by TransGen, if any component tetrahedra have a volume of less than minus this value or the total cell volume is less than this volume.
Cell pore volume cut-off:- this cutoff defines the MINPV keyword in the TGDATA run file, which is then used by TransGen to render inactive any cells which have a pore volume less than the defined threshold. This cutoff is provided to allow TransGen to match Eclipse behaviour and should only be changed from the default value (1.0e-06) to mirror changes in the simulator run file.
HINT:- Only change these default Lower limits either to reflect changes from the defaults in the parent Eclipse run file or in the case of Cell volume error tolerance to change the limit used to identify and exclude geometrically corrupt cells from the calculations in TransGen.
Do not perform calculation
By default, the
Do not perform calculation option is toggled "
off",
i.e. Fault Seal Potential measures and Permeabilities set on the
Fault Rock Properties page of WizGen will automatically be calculated when
ViewGen is selected for the generated TGDATA run file.
2. If you want to use
ViewGen to just view the geometry of the current TransGen model prior to running any FSP and Transmissibility multiplier calculations,
click on the button to turn the
Do not perform calculation option "
on".
3. When the
Miscellaneous Options page is set as required,
click on the
Next>> button to view/edit the
Fault Rock Properties page.
Alternatively,
click on the
<< Back button
to return to the
Included Data page to view/edit the data included in the current runfile.
Or
click on the
Contents button to access the
Contents page to view/edit any of the current TGDATA file settings, inspect the project's TGDATA file and/or inspect the log generated by last
ViewGen calculation.
Click on
Save to save any modifications made to the current TGDATA runfile.
Click on
Quit to exit from WizGen with or without saving the any changes to the TGDATA runfile.
