The LOG group of the Wells bar provides two separate buttons for loading LAS files: Load LAS files for a quick, simple load, and Log Loading Wizard for an advanced load with full control over the loading process.

Load LAS files (simple)

Step 1: Locate the file

Go to Ribbon -> Wells bar and click on Load LAS files button

In the appeared dialog box locate the files and click open

The file dialog provides two additional options. Enable Look for API within the filename to extract the well API/UWI from the file name. The Las collection dropdown lets you add the curves to an existing collection or choose Create new collection to place them in a new one.

Step 2: Control loaded data

To check Well log data you have just loaded click on map view or in table below map. All loaded information will appear in table LAS files where you can find list of loaded curves. In the table Las curve you can check the log values. Also you can see the log preview

Log Loading Wizard (advanced)

The Log Loading Wizard gives you more control over the loading process.

In the Log Loading Wizard window, on the Las files tab, click the + button to add one or multiple LAS files. Once selected, press Next.

A separate Text files tab is available for importing log data from .txt / ASCII files. It uses the same curve-review workflow, with an added separator and column mapping so the wizard can read the curves from a plain text file.

When you add a .txt / ASCII file, an Import log column-mapping dialog opens. g-Space analyses the file and pre-fills the mapping automatically, so a standard log file can be imported with minimal manual editing:

• Separator type - Tab delimited, Space delimited or CSV, detected from the file content.
• Headers row and Start row - the header line and the first data row, detected from the file structure.
• The MD (depth) column and the log Value columns, bound to the matching file columns.
• Mnemonics read from the column headers, with Units filled in where available.

All detected values are only suggestions. You can change the Separator type, Headers row and Start row, edit the fields, mnemonics and units, and use the Add and Remove buttons to add or drop value fields. A preview of the parsed file lets you confirm the mapping before importing.

In the wizard window, you will see a table with all available curves from the selected LAS file.

Each curve is listed with:

• Curve name (short code, e.g., GR, DT, NPHI).
• Name from file (original name as stored in the LAS).
• Type (curve type: Gamma Ray, Density, Resistivity, etc.).
• Units.
• Comments.
• Start depth / End depth.
• Histogram preview of curve distribution.
  
  Curve name, Type and Units can be changed manually, you can choose the options from the list or type it.

When you assign or change a curve Type for a mnemonic (here or later in the Data Manager LAS curve table) and other wells contain the same mnemonic with a different type, g-Space asks Apply this curve type to all curves with the same mnemonic in other wells? Choose Yes to apply the selected curve type to every matching mnemonic in the other wells, or No to change only the current curve. This lets you classify a mnemonic once instead of repeating the assignment well by well.

At the bottom, you can set well-specific parameters that override the values read from the LAS header:

• Well (well name).
• Depth type (MD, TVD, etc.).
• Depth units (Meters, Feet).
• Datum — an editable combo box (KB, Sea level, Manual; or type your own) together with a numeric Datum value.

For more information about formats please refer to Well Data Formats