Export velocity model writes a regularly sampled depth velocity volume from a g-Space velocity model to a SEG-Y file (.sgy), so the volume can be reused in g-Space or in other software.

Purpose

Save a velocity model backed by a populated, regularly sampled depth velocity volume as a SEG-Y file. Each velocity function is written out as a trace in the depth domain, preserving the model's geometry and sampling. Layer, horizon and checkshot representations cannot be exported directly.

Launching the export

In the Data manager, expand the Velocity model node and right-click the model you want to save. Select Export to Seg-Y file when it is enabled.

The command is disabled for an empty model, a model that is not a velocity volume, an empty velocity volume, or a volume without vertical sampling. The disabled entry keeps Export to Seg-Y file and adds the reason in parentheses, such as not a velocity volume. If an export is attempted in an unsupported state, a message explains why it cannot proceed.

[image: placeholder_Data_manager_context_menu_on_a_velocity_.png]

Step-by-step

1. Right-click a velocity model with a populated depth velocity volume and select Export to Seg-Y file.
2. In the save dialog, choose a location and file name; the filter is Seg-Y file (*.sgy).
3. Confirm to write the file. g-Space exports the velocity data with its depth sample interval. If writing fails, check that the destination folder exists, is writable and has enough free disk space, then try again.

[image: placeholder_Save-as_dialog_for_the_exported_velocity.png]

Notes

• The command is available only on an individual velocity model entry, not on the Velocity model root node.
• The model is exported in the depth domain, matching the way it was imported or built.
• The resulting SEG-Y file can be read back with Import velocity model.

See Also

Seismic Data Formats | Import velocity model | Velocity model