WellCAD Basics - Advanced Logic Technology

92 - BOOK 1 - WELLCAD BASICS
1.4.2.4 TFD file import
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Default driver:
Select the default driver from the drop down list. Recent versions of the import
algorithm read the driver directly from the TOL file contained in the *.RD data set
so that the Default driver settings are no longer relevant.
Warn if no header found:
If this option is enabled a warning message is displayed if no header information can
be read from the *.RD file and the borehole document default header is used
instead.
Warn if no Sampler record found:
With the option checked the user would be warned if sampling information were
not available. The data is assumed to be recorded at a constant sample rate if one
continues the file import.
Always use internal TOL file:
A tool configuration file (*.TOL) file is stored within each *.RD data set.
Nevertheless a dialog box pops up each time a *.RD file is imported asking the user
whether he wants to use an external *.TOL file or not. To disable this behavior and
always use the tool configuration stored in incoming *.RD file, check the Always
use internal TOL file option.
Deviation channels filter:
In order to filter the incoming data channels from the orientation devices build into
the FAC/ABI and OBI probes the user can set the filter length measured in number
of data points (see also 1.5.6 Filtering Logs).
TFD is the extension of data files output by the ALT Logger 8.1 and MATRIX data
acquisition system. TFD stands for Tagged Field Data and is a more advanced and
user friendly file format compared to *.RD files. A description of details would be
beyond the scope of this WellCAD manual. Please refer to the corresponding
technical documentation about ALT Logger and MATRIX.
To import a *.TFD file into WellCAD select Import > Single File from the File
menu and pick the *.RD, *.TFD option.