Estimation or filling the block model

Assign Value

Task:  Fill the block model using Assign Value

1. Open training2.mdl.
2. Choose Estimation > Assign value.
3. Enter the information as shown, and click Apply.



4. Enter the information as shown, and click Apply.



The Verify creation of file form appears.

5. Click Yes, to write the assigned value to the block model.

You will now repeat this process of filling the attribute sg. You will assign sg a value of 2.6 inside trans.con and a value of 2.8 inside fresh.con.

6. Choose Estimation > Assign value.
7. Enter the information as shown, and click Apply.



8. Enter the information as shown, and click Apply.



9. Click Yes on the confirmation form.
10. Choose Estimation > Assign value.
11. Enter the information as shown, and click Apply.



12. Enter the information as shown, and click Apply.



13. Click Yes on the confirmation form.

You will now create another constraint for viewing purposes. The file litho.con will contain all the blocks inside the solids sand1.dtm, bif1.dtm and qpy1.dtm.

Note: Make sure you use the OR statement in the constraint combination box as shown.

14. Choose Constraints > New constraints file.
15. Enter the information as shown, and click Apply.



You will now colour the blocks based on numerical attributes.

16. Choose Display > Display block model, and click Apply.
17. Open litho.con in Graphics.
18. Choose Display > Colour model by attribute.
19. Enter the values as shown, click Refresh,, and click Apply.





20. Choose Display > Edge and face visibility, clear Display block edges as shown, and then click Apply.



The visual effect is much better, as seen in the following image.



21. Choose Block model > Close.

Note: To see all of the steps performed in this task, run _04_assign_value.tcl. You need to click Apply on any forms presented.

Nearest neighbour

Task: Fill the BIF zone using nearest neighbour

1. Open training2.mdl.
2. Choose Block Model > Display.
3. Enter the information as shown, and click Apply.



4. Choose Display > Edge and face visibility, select Display block edges as shown, and then click Apply.



5. Choose View > Data view options > View by bearing & dip.
6. Enter the information as shown, and click Apply.



7. Choose View > Zoom > Out.

The block model is displayed.



8. Choose Constraints > New graphical constraint.
9. Enter the information as shown, and click Apply.



10. Choose Estimation > Nearest Neighbour.
11. Enter the information as shown, and click Apply.



12. Enter the information as shown, and click Apply.



On the Status bar, you can see the progress of the estimation.



13. Enter the information as shown, and click Apply.



After the filling is completed, a report called nearest_neighbour.not is produced.

14. Open nearest_neighbour.not.



15. Choose Display > Colour model by attribute.
16. Enter the information as shown, click Refresh, and click Apply.



The constrained and coloured block model for the bif1 zone is displayed.



17. Choose Block Model > Save.
18. Choose Block Model > Close.

Note: To see all of the steps performed in this task, run _05a_nearest_neighbour.tcl. You need to click Apply on any forms presented.

Inverse distance

Task: Fill the sand zone using inverse distance

1. Open training2.mdl.
2. Choose Block Model > Display.
3. Enter the information as shown, and click Apply.



4. Choose View > Data view options > View by bearing and dip.
5. Enter the information as shown, and click Apply.



6. Choose View > Zoom > Out.

The block model is displayed.



7. Choose Constraints > New graphical constraint.
8. Enter the information as shown, and click Apply.



9. Choose Estimation > Inverse Distance.
10. Enter the information as shown, and click Apply.



11. Enter the information as shown, and click Apply.



12. Enter the information as shown, and click Apply.



13. Enter the information as shown, and click Apply.



After the filling is complete, a report called training_id2.not is produced.



14. Choose Display > Colour model by attribute.
15. Enter the information as shown, click Refresh, and then click Apply.



The constrained and coloured block model for the Sand1 zone is displayed.



16. Choose Block Model > Save.
17. Choose Block Model > Close.

Note: To see all of the steps performed in this task, run _05b_inverse_distance.tcl. You will need to click Apply on any forms presented.

Ordinary kriging

Task: Fill the QPY zone using ordinary kriging

1. Open training2.mdl.
2. Choose Block Model > Display.
3. Enter the information as shown, and click Apply.



4. Choose View > Data view options > View by bearing and dip.
5. Enter the information as shown, and click Apply.



6. Choose View > Zoom > Out.

The block model is displayed.



7. Choose Constraints > New graphical constraint.
8. Enter the information as shown, and click Apply.



9. Choose Estimation > Ordinary Kriging.
10. Enter the information as shown, and click Apply.



11. Enter the information as shown, and click Apply.



12. Enter the information as shown, and click Apply.



13. Enter the information as shown, and click Apply.



14. Enter the information as shown, and click Apply.



15. Enter the information as shown, and click Apply.



After the model is filled, a report file callled ordinary_kriging.not is produced.



16. Choose Display > Colour model by attribute.
17. Enter the information as shown, click Refresh, and click Apply.



The constrained and coloured block model for the QPY zone is displayed.



18. Choose Block Model > Save.
19. Choose Block Model > Close.

Note: To see all of the steps performed in this task, run _05c_ordinary_kriging.tcl. You need to click Apply on any forms presented.