Creating Fence Diagrams of Time Interval Data

RockWorks | Borehole Manager | T-Data | Fence

Use this program to:

• Create a new 3-dimensional solid or block model representing your downhole time-based interval data (an .RwMod file) - OR - read an existing .RwMod file you've already created.
• "Slice" this model along multiple panels.   Because the model is interpolated across the entire project, you can place the fence panels anywhere you like.

You may request regular panel spacing, in a variety of configurations, or you can draw your own panels. The data values can be color-coded in a variety of ways; 3D logs can be appended. The completed fence diagram will be displayed in RockPlot3D where there is a variety of visualization tools. 

Feature Level: RockWorks Standard and higher
 

Menu Options
Step-by-Step Summary
 

Menu Options

• Solid Modeling Options: First, tell the program whether you wish to use an existing solid model (from a previous use of this tool or another T-Data menu tool) or you wish to create a new solid model, by clicking in the appropriate radio button.
  ! Note This is not trivial. Creating the solid model can take some time, depending on the resolution of the model and the detail of your data. If you already created a pleasing model for display as a profile diagram, for example, you can use the same model, which was stored on disk as a MOD file, for the fence.
   
  • Create New Model: If want to create a new model, click in this radio button, and expand this item to establish the modeling settings.
    • T-Data Track: Click on this item to select the track or column in the T-Data tab that is to be modeled. The names displayed in the list will be pulled from the column headings.  Expand this option to establish any source data filtering.
      ! Note that these tools filter the data that is passed to the modeling procedures.  This is distinct from the filters that are applied after the model is completed (see Other Modeling Options below).
      • Filter Based on G-Values: Activate this option to establish a data filter based on the measured values (geochemistry, etc.), and expand the heading to establish the filter parameters.  (More.)
      • Resample at Regularly-Spaced Intervals: Check this box to resample the data.  (More.)
      • Date/Time Filter: Insert a check in this box - on the far right side of the current program window - to model measurements for a specific date or range of dates.  If you leave this un-checked the program will model all of the measurements, for all listed dates, in a single model.  (If you have entries for different dates for the same depth intervals for your wells, leaving the date filter off may not make much sense.)
        • Exact: Click in this button if you wish to enter a specific date for the measurements to be modeled.  Enter into the prompt or choose from the calendar the specific date.  During modeling RockWorks will process the T-Data measurements for the selected track that fall on this date.
        • Range: Click in this button if you prefer to enter a beginning and ending date to define the range of dates to be included in the model. Type the dates into the Start and End prompts or pick dates from the calendar.  During modeling RockWorks will process the T-Data measurements for the selected track that fall within this date range.
        Spatial (XYZ) Filtering: Insert a check in this box - also on the far right side of the current program window - to activate a data filter based on where the data points lie. Expand this heading to establish the filter settings. 
        
      • Create Filter / Sampling Report: If you've selected any filter/resampling options, this tool will create a summary report of the results. (More.)
    • Solid Model Name: Click to the right to enter a name for the solid model, with an .RwMod file name extension.
      ! It's a good idea to incorporate the date into the name of the model, if you're creating multiple models.  For example, "cobalt_02-14-07.RwMod" could be the model for the Feb 14, 2007 measurements of cobalt, and "cobalt_08-06-07.RwMod" for the cobalt model for August 6th.
    • Solid Modeling Options: Click on this button to establish important modeling settings:
      • Algorithm (Modeling Method): This determines the modeling method to use, for creating a solid model from your irregularly-spaced drill hole data. (More.)
      • Model Dimensions: This determines the model density. (More.)  Unless there's a specific reason to do otherwise, you should probably leave the solid model dimensions set to the current output dimensions.
      • Other Modeling Options: These include tilting, warping, filtering above-ground, smoothing, and much more. 
         
  • Use Existing Model: Click in this radio button if you wish to use an already-existing solid model of your time-interval data.  Expand this item to select: 
    • Model Name: Click to the right to browse for the name of the existing solid model to be used for this fence diagram. 
       
• Color Scheme: Click on the Options button to define the display's color scheme - automatic, table-based, etc. (More.)
  
  
• Include Color Legend: Insert a check here to include an index to the colors and G values in the fence diagram.  (More.)
   
• Plot Outline Around Each Panel: Insert a check here to include a solid-line outline around each fence panel, and expand the heading to define the line style and color.  Leave this option un-checked to omit the outline.

  

   
• Plot Surface Profile:  Insert a check here to include a solid line profile on each fence panel that represents a user-selected grid model, typically the ground surface. 
  • Grid Model: Expand this heading to select the name of the grid model to be represented with the profile line.  (More.)

• Plot Logs:  Check this box to append striplogs to your fence diagram.
  ! Note that 3D logs for all active boreholes will be appended to the fence diagram.
  • Clip Logs: Check this sub-item if you want to restrict the logs to a particular elevation range. 
  • 3D Striplog Designer: Click on the 3D Striplog Designer tab to the right, to select the items to display in the individual logs to plot with the fence diagram.  

  • 

    • Visible Items:  Use the check-boxes in the Visible Items column to select which log items are to be displayed.  See Visible Item Summary for information.
    • Options: Click on any of the Visible Items names to see the item's settings in the Options pane to the right.  See the Visible Item Summary for links to the Options settings.
    • Layout Preview: For each item you've activated, you'll see a preview cartoon in the upper pane, showing an overhead view of the log columns.  Click and drag any item to rearrange the log columns; click and drag the circle handles to resize a column.  See Using the 3D Log Designer.
   
• Reference Cage: Insert a check here to include vertical elevation axes and X and Y coordinate axes in the 3D diagram. Expand this item to set up the cage items.  (More.)
   
• Create Location Map:  Insert a check here to have the program create, along with the fence diagram, a reference map that shows the fence panel locations. (More.)

  

  
  
• Fence Selection Map: Click on the Fence Selection Map tab to the right, to draw where the fence panels are to be placed. The most recent panels drawn for this project will be displayed.  (More.)

  

   

Step-by-Step Summary

1. Access the RockWorks Borehole Manager program tab. 
2. Enter/import your data into the Borehole Manager. This tool specifically reads location, orientation (if any), and Time Interval data.
3. Select the T-Data | Fence menu option. 
4. Enter the requested menu items, described above.
5. If you are including logs, be sure to click on the 3D Striplog Designer tab to establish how you want the logs to look.
6. Click on the Fence Selection Map tab to select the fence panel locations.
7. Click the Process button to proceed. 

If you've selected Use Existing Model, the program will load the information from the existing T-Data model (.RwMod file), and will proceed to diagram generation.

If you've selected Create New Model, the program will scan the project database and extract the XYZ points for all of the downhole measurements for the selected T-Data track. (For T-Data, the elevations will represent interval midpoints.) It will apply any source data filters you have requested.

8. If you requested Confirm Dimensions, the program will first prompt you to confirm the default solid model dimensions.  (More.)

The program will use the selected algorithm to create a solid model of the downhole time-based interval data. The completed model will be stored on disk under the indicated file name. 

The program will look at the coordinates specified for each fence panel and determine the closest nodes along the cuts in the brand-new model, if created, or in the existing model. It will construct a vertical profile to illustrate the data values, using the selected color scheme. This process will be repeated for each fence panel you drew.  If strip logs were requested, the 3D logs will be appended to the 3D diagram.  The completed diagram will be displayed in a RockPlot3D tab in the Options window.

! Each time you click the Process button, the existing display will be replaced. 
! * If the solid model looks OK and you just need to adjust one of the diagram settings, you don't need to keep re-interpolating the model.  Choose Use Existing Model and browse for the .RwMod file to be used for the fence.

9. You can adjust any of the following items and then click the Process button again to regenerate the diagram.
   • T-Data model settings in the Options pane on the left*, and/or
   • Fence diagram settings in the Options pane on the left, and/or
   • Striplog settings in the 3D Striplog Designer tab, and/or
   • Panel locations in the Fence Selection Map tab.
      
10. View / save / manipulate / print / export the image in the RockPlot3D window. 
    
    

 Back to T-Data Menu Summary

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