The conversion consists of two steps:

  1. In NORSAR-2D, store the NORSAR-2D model on the Seismic Model Interchange File (.Smif) ASCII format.
  2. In NORSAR-3D, load the .Smif file and make a NORSAR-3D model.

There are two different ways to do this conversion:

  • Method 1

You can always use this procedure, but it may in some cases change the global coordinates of the model. NORSAR-2D and NORSAR-3D may use different projects.
 

  • Method 2

can only be used if the NORSAR-2D modeling Section is an Inline or Crossline section in the NORSAR-3D project. NORSAR-2D and NORSAR-3D must use the same project. The coordinates are retained.

Method 1

  1. From the NORSAR-2D Console Window select File > Export > SMIF Generator.
  2. Set a suitable output directory.
  3. Generate the .Smif model. It is stored as an ASCII file on the selected directory.
  4. From the NORSAR-3D Console Window select File > Import > Model Import > N2D Smif import.
  5. Set directory, select the .Smif file, and Convert.
  6. A cylindrical, 2.5D NORSAR-3D model is made. The 2D model varies in the x-direction in the model coordinate system. The model is invariant in the y-direction.


Method 2

  1. From the  NORSAR-2D Console Window select File > Export > SMIF Generator.
  2. Use the default output directory ‘./’.
  3. Generate the .Smif model. It is stored as an ASCII file on the selected directory.
  4. From the NORSAR-3D Console Window start Functions > Model > Model Builder.
  5. In the Model Builder, select File > Load > 2D model from Smif. Select the section-model combination and load. 
  6. In the Model Builder, select 2DModels > 2.5D model from 2D. Select the section-model combination and make the 2.5D model.
  7. Select the model in the hierarchy window and in File > Store > Selected group/model as… store it ‘As model ready for ray-tracing’.