Click the Table | Voxler | Create VolRender command to create a VolRender object in Voxler (3, 4, or higher). In the Create VolRender in Voxler dialog, set the export options and click OK. The data is imported into Voxler, gridded, and a VolRender module is created.
Set the inclination (or dip), azimuth, units, and well color and size and click OK.
The Sample data section contains a portion of the table. The top line contains the header row, for ease in setting the inclination (or dip), azimuth, hole ID, well color, and well size columns.
Check the box next to Include all boreholes to create the VolRender in Voxler from all boreholes in the table. When the box is not checked, the Hole ID option becomes available.
When the Include all boreholes option is not checked, the Hole ID option becomes available. Click on the existing borehole name and select the appropriate borehole from the list. Only the selected borehole is exported and used for the calculations creating the VolRender in Voxler.
The Hole inclination source or Hole dip source contains the source of the inclination or dip column. Click on the existing table name and select the desired table from the list. Available options are None, Collars table, Data table, and Survey table. Setting the option to None does not calculate the true vertical depth for the wells in the VolRender. The Collars table option reads all collars tables in the project and selects the appropriate inclination column for each borehole. The Survey table option reads all survey tables in the project and select the appropriate inclination or dip column for each borehole. Set the source to Data table to read the Hole inclination column or Hole dip column from the currently selected table. The Hole inclination column or Hole dip column option becomes available.
If either the Hole inclination source, Hole dip source, or Hole azimuth source is set to Survey table, both sources are set to Survey table.
When the Hole inclination source or Hole dip source is set to Data table, the Hole inclination column or Hole dip column option is available. Click on the existing column name and select the column that contains the inclination or dip information from the list.
The Hole azimuth source contains the source of the azimuth column. Click on the existing table name and select the desired table from the list. Available options are None, Collars table, Data table, and Survey table. Setting the option to None does not calculate the true vertical depth for the wells in the VolRender. The Collars table option reads all collars tables in the project and selects the appropriate azimuth column for each borehole. The Survey table option reads all survey tables in the project and select the appropriate azimuth column for each borehole. Set the source to Data table to read the Hole azimuth column from the currently selected table. The Hole azimuth column option becomes available.
If either the Hole inclination source, Hole dip source, or Hole azimuth source is set to Survey table, both sources are set to Survey table.
When the Hole azimuth source is set to Data table, the Hole azimuth column option is available. Click on the existing column name and select the column that contains the azimuth information from the list.
The Depth units option determines the units used in the exported data file. By default, the Depth units are set to the same units as the units on the Depth column. Changing the Depth units allows a data file to be created with a different unit, such as meters instead of feet.
The TVD calculation method is the method used to calculate the true vertical depth. Refer to the True Vertical Depth Calculation Methods page for information on each method.
The Data variable option determines the column in the table that is gridded and displayed as the VolRender in Voxler. To change the Data variable option, click on the existing option and select the desired option from the list.
Check the box next to Include all data to include all data in all columns in the existing table in the exported data file. Uncheck the box to only export the Hole ID and X, Y, and Z coordinates. The Include all data is checked by default.
When a data table contains depth values that increase down the borehole, checking the box next to Export Depths as ascending will make the depth values negative, so that the values increase up. This is useful when working in other programs, such as Voxler, Surfer, or Grapher with the exported data. As an example, a borehole that ranges from 0 at the top of the borehole to 2400 at the bottom of the borehole will be exported as 0 to -2400 when this option is checked.
Click OK to export the data and create the VolRender. Click Cancel to exit out of the dialog without creating the VolRender in Voxler.
Click the Cancel button at the far right of the status bar to cancel the creation of the VolRender module in Voxler.
When the data is exported to Voxler to create a VolRender, data that contains the NULL value are included in the data created in Voxler. An ExclusionFilter is created to remove any data that contains the NULL value. The resulting gridded lattice and VolRender do not contain NULL information.
See Also