1. Now at Halliburton Energy Services, Baroid, Technology Center Houston Texas USA
2. Mewbourne School of Petroleum and Geological Engineering, PoroMechanics Institute University of Oklahoma Norman Oklahoma USA
3. Mewbourne School of Petroleum and Geological Engineering, School of Civil Engineering and Environmental Science, ConocoPhillips School of Geology and Geophysics, PoroMechanics Institute University of Oklahoma Norman Oklahoma USA