1. Department of Geotechnology; Faculty of Civil Engineering and Geosciences; Delft University of Technology; PO Box 5048 2600 GA Delft The Netherlands
2. Inpex Corporation; 5-3-1 Akasaka Minato-ku 107-6332 Tokyo Japan
3. Department of Imaging Physics; Faculty of Applied Sciences; Delft University of Technology; P.O. Box 5046 2600 GA Delft The Netherlands
4. Shell Global Solutions International; Kessler Park 1 2288 GS Rijswijk The Netherlands