Importing Survey Data

Various types of surveys (acid, gyroscope, magnetic orientation, etc.) can be used to record hole depth and direction (measured from the drillhole collar at the surface). For Drillhole, you can use survey data in one of two forms:

Hole	Depth	Azimuth	Dip
Hole	Depth	Easting	Northing	Elevation

Before importing data, you must make sure that you have all fields as shown in one of these configurations (i.e. these fields are required on import).

By convention:

Depth is the distance measured into the hole from the collar, increasing from zero.
Azimuth is in degrees, increasing positively in a clockwise sense from North (i.e. N is 0 degrees, E is 90 degrees).
Depth, Easting, Northing and Elevation are in the same units as default units set in the Oasis montaj Default settings dialog (Settings | Global Settings | General).

To Import Survey Data:

On the DH-Data menu select Import, and then select the Text file option.
The Drill Hole – ASCII Import dialog is displayed.
Using the browse button, select the survey data file from your working directory and click the Wizard button.
The system scans the file and displays the first of four dialog boxes from the Drill Hole Import Wizard.
Select the Data Import Format as well as the Types of Data to import, if your data hasn't defaulted to the right selection.
Click the Next> button to display the second Drill Hole Import Wizard dialog.
Select the File Type and fill in the row properties. You can view the rest of your data in the preview window if desired.
Click the Next> button to display the third Drill Hole Import Wizard dialog.
Select the type of character or white space used to separate the column text.
Click the Next> button to display the final Drill Hole Import Wizard dialog.
Select the Channel Type and Parameters for each of the channels you would like to edit. You may switch the channel you are editing by clicking on it in the preview window.
Click the Finish button. The system imports the data and displays it in the spreadsheet window.