GeoSyn enables you to create a synthetic by importing raw log data from LAS or GeoSyn files. Creating synthetics from a GeoSyn file is different than opening a GeoSyn synthetic because only log information and no formatting is saved in the imported file.
When you import a GeoSyn or LAS file, GeoSyn renders the file using the settings in the import defaults file and loads the formation tops defined in the well from your local AccuMap system tops and AccuMap user tops databases.
There are two ways to import log data into GeoSyn:
- Drag and drop a single LAS file onto the main GeoSyn display.
- Use the Import log data wizard
To import LAS or GeoSyn files using the Iog import wizard:
- Start the log import wizard, FIle > Import >Log data.... This opens the Import log data dialog box
- Select the root directory or drive from the Look in drop-down list then double-click folders in the display pane and browse to the directory that contains either the desired files or the subdirectories with those files. To filter the type of files displayed, from the File filter drop-down list, select a file format extension.
3. Either click Browse dir. or Browse sub-dir to launch Directory Browser, or simply select the desired file in the display pane.
- For LAS files, you can inspect the raw data in an ASCII text editor before importing the file by clicking File Viewer.
When you select the file, details appear in the LAS or GeoSyn format file pane.
4. In the well tree,
select whether to import specific logs. A check mark (
)
appears beside logs that will import, a cross (
) beside those
that won't. For wells with numerous logs, toggle the group by clicking
All ( or ) depending on whether to import or ignore the majority of
logs, then toggle the individual logs to import or ignore.
5. Specify whether the selected log(s) is in Measured Depth or True Vertical Depth units so that GeoSyn correctly places the formation tops from the AccuMap system tops and user tops databases, and then click Import.
If you ignore the sonic log or one isn't available, GeoSyn automatically creates a straight line (constant velocity) sonic log. For details on manually editing logs, see Related topics below.
If the import file has missing or invalid data such as an invalid UWI or log alias, GeoSyn enables you to correct it during the import. For details, see Related topics below.