Build a solid 3D resistivity model in RockWorks using data exported from Res2DInv

SilasKOMBOUNANKAP
SilasKOMBOUNANKAP Posts: 1
in AGS Res2DInv & Res3DInv

To build a solid 3D resistivity model in RockWorks using data exported from Res2DInv, here's a step-by-step guide and considerations for your export:

  1. Choosing the Export Option

AGS XYZ Format:
This option provides corner coordinates of the resistivity blocks and global coordinates (x, y) for block centers. It is useful for maintaining spatial precision and defining block boundaries explicitly, which can be beneficial for generating detailed 3D models in RockWorks.

Surfer Format:
This format provides global x, y, z coordinates for block centers with resistivity values, which is simpler but may lack the precision of block boundaries. It’s ideal for straightforward interpolation but may introduce errors in block alignment.

Recommendation: Use AGS XYZ for better control over block geometry and accurate 3D interpolation in RockWorks.

  1. Steps for Export and Import

Export from Res2DInv:

  1. Open your resistivity section in Res2DInv.
  2. Select the AGS XYZ export option.
  3. Save the file and note its structure (ensure resistivity values are included).

Prepare the data for RockWorks:

  1. Open the AGS XYZ file in a text editor or spreadsheet software.
  2. Organize the data into columns (X, Y, Z, Resistivity).
  3. Ensure the coordinates align with your project’s spatial reference system.

Import into RockWorks:

  1. Launch RockWorks and create a new project.
  2. Go to Utilities > XYZ Grid Import.
  3. Select the prepared AGS XYZ file.
  4. Follow prompts to build a 3D resistivity model.
  1. Documentation and Tutorials

Res2DInv User Manual:
Refer to the export section in the Res2DInv manual for detailed instructions on AGS and Surfer formats.

RockWorks Tutorials:
Visit the RockWare website for tutorials on importing XYZ data and creating 3D models.

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