Importing 3D Seismic Data in Micromine

Micromine allows users to import and visualize 3D seismic data in SEG-Y format. This process generates an output volume file for display in Vizex, enhancing geological modeling by integrating seismic data with drillhole information.

Steps to Import 3D Seismic Data

1. Open Import Tool

   • Navigate to File → Import → 3D Seismic (SEG-Y).
     
     
     
     

   • Alternatively, use File → Convert → Volume → From 3D SEG-Y.
     
     

2. Select SEG-Y File

   • Click Select to choose a SEG-Y file (*.sgy, *.segy).

   • Right-click on the file to view header details.
     
     
     
     

3. Define Data Locations

   • Set In-line and Cross-line byte numbers from the header details (default: bytes 189 and 193 for Revision 1 SEG-Y).
     
     

4. Configure Coordinates

   • Select coordinate method: Group, Source, or CDP.

   • Click Calculate to automatically determine reference points, spacing parameters, sample intervals and direction for in-line and cross-line.

   • Double-check with the SEGY header details to make sure these parameters are correct.
     
     

5. Generate Output Volume File

   • Specify the output Volume file (*.mmvol) with its associated attribute e.g. amplitude

To visualize the imported seismic volume in Vizex, the user can double-click on the Volume tab of the Vizex Layer Types, select the seismic volume file and apply a color set for amplitude values from there.

The 3D Seismic (SEG-Y) layer supports processing options for in-line and cross-line sampling. Colour, 3D Shaded and 2D Slice draw styles, and layer transparency, can all be applied to the model. An option to generate isosurfaces around discontinuities detected during seismic interpretation, is also provided.

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