Voxler 3's WellRender module is a powerful tool for displaying well paths and logs. Well data may be imported from LAS files or from spreadsheets containing well information. Let's go over some tips and guidelines to import your well data from spreadsheets and create stunning models of your wells in no time!
Units of Measure
Voxler looks at units in the X, Y, and Z direction in a 1:1:1 ratio. This means no matter if your data is in latitude, longitude, feet, or meters, Voxler treats each unit as it if were the same. If your data uses a mix of units, this could result in an undesirable display. To create meaningful models, I recommend converting all your data to one unit of measure. For example, if your well depths are measured in feet, but your well collars are measured in latitude and longitude, I recommend converting your latitude and longitude values to feet by converting to the State Plane coordinate system. If your depths are in meters, I recommend using UTM meters for your well collars data. You can quickly and easily convert your latitude and longitude values to the coordinate system of your choice using Surfer.
Data Organization
To display your wells and sample data with the WellRender module, you will import a combination of collars information (X, Y, Z location of the well tops), log data, and trajectory information. Voxler uses measured depth values to plot the wells, and you can either import your data as a single sheet with pre-computed down-the-hole X, Y, and Z values or as multiple sheets containing collars, trajectory, and sample data. Let’s take a closer look at both ways the data may be organized.
Multiple table approach with directions survey information
The first way that the trajectory information may be organized is using a collars table, directions survey table, and samples table. With this approach, each table is on its own sheet in a workbook or in separate files. To use this approach, the following data is necessary:
Collars Table | Directions Survey Table | Log/Samples Data |
Well ID/Name | Well ID/Name | Well ID/Name |
Top Easting (X) Location | Measured Depth | Log/Sample Data |
Top Northing (Y) Location | Azimuth | Measured Depth (or From and To columns) |
Top Elevation (Z) Location | Inclination | |
Total Measured Depth | ||
Azimuth (optional) | ||
Dip (optional) |
The three sheets contained in the SampleWellData.xlsx file (located by default at C:\Program Files\Golden Software\Voxler 3\Samples) are an example of data organized in this way. I used a subset of that data for the following example. Your worksheets may look similar to the snippets below:
Above: Collars table
Above: Trajectory information
Above: Samples data
Single table approach with X, Y, and Z values down-the-hole
The other way your well data may be organized is with pre-computed X, Y, and Z values down-the-hole. Each well must have at least three XYZ points in order for Voxler to compute the well path. When using the single sheet approach, the following columns are required in your data file:
Well ID/Name |
Easting (X) Location |
Northing (Y) Location |
Elevation (Z) Location Down the Well |
Measured Depth |
Log/Sample Data |
If desired, you may also include azimuth and dip or inclination information. Your worksheet may look like the snippet below:
Data for single sheet approach
Import Process
Now, let’s take a look at the process to import the well data with each method. I have uploaded all the data files and project files used in the following examples. They can be downloaded here.
Multiple table approach with directions survey information
Select Data Columns dialog for the collars table
Select Data Columns dialog for the trajectory information
Select Data Columns dialog for the samples data
Single table approach with pre-computed X, Y, and Z values down-the-hole
Select Data Columns dialog for single sheet approach
Wells from the single table approach with additional modules
Once you have used one of the methods above to import and display your wells, you can use the Property Manager to enhance your display by modifying the WellRender properties, such as size and color. As demonstrated in the image above, you can also extract the points from the WellData module, grid the data and add more graphics output modules to create spectacular displays! For additional information on importing and displaying well data, please see the webinar recording, An In Depth Look at the WellRender and the Loading and Visualizing Well Data Voxler training video.
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Comments 1
very helpful job as a survey