Tutorial: Create a P-Data Fence Diagram

Estimated time: 4 minutes.

In this lesson, you will create a fence diagram view of the solid model created back in the P-data model lesson and also illustrated in the panel section. The fence diagram differs from the cross section in two ways: It can contain discontinuous (un-connected) slices of the model, and the output diagram will be displayed in the RockPlot3D window.

The instructions below are written with the assumption that you have completed the 3D Logs and P-data model lessons.

1. Back at the Borehole Manager, click on the P-Data menu and select the Fence option.
   
2. Model: Establish the model settings.
   • Use Existing Model: have already created the model that represents the P-Data, you can use that model for the fence diagram display.
   • Solid Model: Click here to browse for the file Gamma.RwMod.
     ! This is really important to remember ! In your own work. Once a solid, numerical model is created to represent your data, and saved as an ".RwMod" file, you can use that same model to create different types of diagrams – profiles, sections, fences, isosurfaces, slices – without having to recreate the solid model each time. Here we just want to create a new type of diagram from the model you already created.
   • 
     
3. Establish the diagram options:
   1. Color Scheme: This will default to a cold-to-hot color scheme, click the large color bar to choose a different sceme. You can also choose the end colors.
      
   2. Panel Borders: Unchecked.
   3. Surface Profile: Unchecked.
      
   4. Striplogs: Checked. The program will append 3D logs to the 3D view, using the same settings we used in an earlier lesson in this section.
      
   5. Draped Image: Unchecked.
   6. Floating Image: Unchecked.
   7. Perimeter Cage: Unchecked.
      
   8. Legend(s): Check this and click the tab.
      • Color: Choose this legend type. Uncheck the others.
      • 
        
   9. Infrastructure: Unchecked.
   10. Faults: Unchecked.
   11. Other 3D Files: Unchecked.
       
4. Output Options
   • Display: Check this so that the diagram is displayed on completion.
   • Save: Unchecked.
   • Export: Unchecked.
   • 
     
5. Click on the 3D Log Design tab at the top of the window if you'd like to review the striplog setup. The settings from the earlier lesson should still be in effect.

   

6. Location Map. Check this, to display your fence panel arrangement in plan-view.
   • Labeled Axes: Checked.
   • Map Overlays: Checked.
     • Borehole Locations: Checked.
     • 
       
7. Click on the Fence Location tab next, to define the layout of the fence panels.

   

   Unlike profile diagrams, fence diagrams permit multiple panels to be selected. These can be drawn in several ways:

   • Interactively by you, by clicking the beginning and ending points of the panels, just like you drew the cross section slices, and/or
   • Using pre-set panel selections, offered in the buttons to the left, and/or
   • From coordinates listed in an "X Y Pairs" table in the database.

   For this tutorial, we will use the second option. If the fence panel layout doesn't look like that which is shown below, continue with these steps. Otherwise, jump to #8.

   1. Clear: Click on the Clear button at the top, to remove any existing panels.
   2. Snap: Clear this box (upper-left). This allows the panels to be drawn anywhere within the model, not just between boreholes.
   3. Click on the N & S button, to the left. The program will draw horizontal lines along the north and south borders of the project.
   4. Click on the E & W button. You will see vertical lines drawn along the western and eastern borders of the project.
   5. Click on the Cross button. The program will add north-south and east-west panel lines to the map window.

   

   In your own work, you can use any combination of hand-drawn and/or pre-set panel configurations. If you wish to erase the current panels to re-draw, simply click the Clear button to clear the display.
   ! Because the P-Data model is continuous, you can place the fence panels anywhere within the model - you don't have to place the panel endpoints at the borehole locations.

8. Click the Continue button at the bottom of the P-Data Fence Diagram window.

   RockWorks will read the contents of the existing gamma solid model file and will create vertical slices through the model along the indicated panel lines. The completed diagram will be displayed in a RockPlot3D tab. Three-dimensional logs will be appended to the fence diagram.

   Note: The image is displayed in the pane to the right, and the image components as well as the standard reference items are listed in the pane to the left of the image.

9. Explore a bit...
   1. Expand the Gamma Fence item in the Data listing. Note that the 6 vertical panels are listed there. Each can be expanded, where the panel outline and vertical grid model are listed. (If you can’t tell which panel name corresponds to which panel in the view, remove a check-mark and see which one disappears.)
      
   2. Adjust the display as you wish using the Rotate and Pan buttons.
      
   3. Adjust the panel opacity: You can adjust the opacity of an entire group of objects (such as the fence panels) by double-clicking on the Gamma Fence item (the heading with the icon). Set the Opacity setting to 70 and click Apply. This will apply the new setting to all of the items below this group heading. You should now see the logs better. Close the transparency window.
      
   4. Turn data items on and off: Take a moment to experiment with turning display items on and off, using the check-boxes in the Data listing in the data pane.
      
10. Save this image: Select the File | Save command. In the displayed window, type in this name:   Pdata Logs+Fence   and click Save. RockPlot3D will save this combined information on disk under that name, with the ".Rw3D" file name extension.
    
11. Close this plot window by clicking on the Close button (X).

This is the end of the tutorial for point-based data. For more information about the RockPlot3D display window, visit that tutorial.

  P-Data Fences

  Back to P-Data menu

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