Downloading and Opening the Data - Tutorial

For this tutorial, let's use real world data, downloaded from the United States Geologic Survey (USGS).  Some good sample data is available at http://energy.cr.usgs.gov/OF00-200/WELLS/WELLIDX.HTM. The location information displayed in the table has been copied to the Strater samples directory. This information will be used for the collars table.

Click on Tunalik 1, Kugrua 1, Walakpa 2, and Walakpa 1 well names. After clicking on each well name, click the LAS Format Log Data link. On the new page, right-click on the LAS File name link to download the LAS data. Save all the LAS files to the same directory.

Opening the Data

Once the data is downloaded, open the location collars information into a new Strater table and open the LAS data into a single depth table. Use these steps:

1. Click the File | Open command.

2. Select the LAS Collars.xlsx file from the Strater Samples directory and click Open.

3. Select the Collars sheet and click OK.

4. In the Specify Worksheet Column Definitions dialog, check the box next to the Specify Column Header Row option and click Next.

5. In the Specify Data Type and Column Positions dialog,

   1. Set the Data type to Collars.

   2. Set the Hole ID to Well Name.

   3. Set the Starting Depth to Datum, Kelly Bushing, ft.

   4. Set the Ending Depth to Total Depth, ft.

   5. Set the Elevation to Datum, sea level, ft.

   6. Set the Easting to Longitude.

   7. Set the Northing to Latitude.

   8. Click Finish.

6. Click the Home | New | Table command.

7. Set the Table Name to LAS Data and the Base Table Type to Depth Table in the Create New Table dialog and click Create.

8. Click the File | Import command. In the Import Data dialog,

   1. Browse to the directory where the LAS files have been saved.

   2. Click on the first LAS file in the directory.

   3. Hold down the SHIFT key on the keyboard and click on the last LAS file in the directory.

   4. The KG1.LAS, TU1.LAS, WA1.LAS, and WA2.LAS files should be selected.

   5. Click Open.

9. In the LAS Import Options dialog,

   1. Check the box next to Import Well Data option.

   2. Click the Create Table button.

   3. Type LAS Information in the Select Name dialog and click OK.

   4. Check the box next to the Use same settings for subsequent LAS files option.

   5. Click Next.

10. In the Import Data Into Current Table dialog,

    1. Click the Create Columns from Source button.

    2. Click on Depth in the Current Table Mapped Columns list.

    3. Select M_DEPTH in the Import Source Data Columns list.

    4. Click the button and the M_DEPTH is mapped to the Depth column.

    5. Click Import and the data is loaded into two tables, an LAS Data table and LAS Information  table.

Back to Creating a Cross Section from Line/Symbol Logs

Next to Creating the Cross Section